Delhi Police Constable (Executive) 2023 Official Paper (Held On: 22 Nov, 2023 Shift 2) (Previous Year Paper)

The correct answer is Vikram Seth.

Key Points

• Vikram Seth is an Indian author and poet known for his versatile writing.
• 'A Suitable Boy' is one of his most renowned works, first published in 1993.
• The novel is set in post-independence, post-partition India and explores various social and political issues.
• 'A Suitable Boy' is one of the longest novels ever published in a single volume in the English language.
• The story revolves around a young girl's search for a suitable husband, intertwining various characters and subplots across India.

Additional Information

• Vikram Seth's Other Works
• 'The Golden Gate' - A novel in verse form, published in 1986.
• 'An Equal Music' - A novel published in 1999, exploring the lives of musicians.
• 'Two Lives' - A non-fiction work published in 2005, detailing the lives of his great uncle and aunt.
• A Suitable Boy's Adaptation
• 'A Suitable Boy' was adapted into a television miniseries in 2020, directed by Mira Nair.
• The series was produced by the BBC and released on Netflix, featuring an ensemble cast.
• Historical Context
• The novel is set in the early 1950s, a crucial period in India's history, post-independence.
• It reflects the socio-political landscape of the time, including land reforms and the rise of new political movements.
• Literary Significance
• 'A Suitable Boy' is celebrated for its detailed characterizations and intricate plot.
• The novel offers a panoramic view of Indian society and its complexities.

The correct answer is Odissi.

Key Points

• Minati Mishra was a renowned Indian classical dancer known for her contributions to the Odissi dance form.
• She was conferred the Padma Shree, one of India's highest civilian awards, in 2012 for her significant contributions to Odissi.
• Odissi is one of the oldest classical dance forms in India, originating from the state of Odisha.
• Minati Mishra was not only a performer but also a teacher and choreographer, contributing immensely to the promotion and preservation of Odissi.

Additional Information

• Odissi Dance:
• Odissi is characterized by its intricate footwork, expressive gestures, and sculpturesque poses.
• It is traditionally performed by women, and its themes are usually religious, often inspired by the Vaishnavism sect.
• Odissi is known for its Tribhangi posture, which divides the body into three parts: head, bust, and torso.
• The dance form includes both pure dance (Nritta) and expressive dance (Abhinaya).
• Padma Shree Award:
• The Padma Shree is the fourth highest civilian award in India.
• It is awarded to citizens of India in recognition of their distinguished contribution in various spheres of activity, including the arts.
• The award is announced on Republic Day (26^th January) each year.
• Guru Kelucharan Mohapatra:
• He is considered one of the foremost exponents of Odissi dance.
• His contributions have been instrumental in reviving and popularizing the dance form in modern times.
• Classical Dance Forms of India:
• India is home to several classical dance forms, each with its unique style and cultural significance.
• Other major classical dance forms include Bharatanatyam, Kathak, Kathakali, Kuchipudi, Manipuri, Mohiniyattam, and Sattriya.

The correct answer is Nagara.

Key Points

• The Lakshmana temple of Khajuraho, built during the Chandela dynasty, is dedicated to Lord Vishnu.
• The temple is an outstanding example of the Nagara style of temple architecture, which is prevalent in Northern India.
• The Nagara style is characterized by beehive-shaped towers known as 'shikharas'.
• The Lakshmana temple features a central shikhara that rises over the main sanctum (garbhagriha).
• Ornate carvings and intricate sculptures adorn the temple, depicting various mythological stories and deities.

Additional Information

• Nagara Architecture:
• The Nagara style is one of the three main styles of temple architecture in India, the other two being Dravidian and Vesara.
• This style is primarily found in Northern and Central India and is characterized by its vertical elevation and curvilinear shikharas.
• Temples in the Nagara style often have a cruciform ground plan with several projections and recesses creating a complex pattern.
• Khajuraho Group of Monuments:
• The Khajuraho Group of Monuments is a UNESCO World Heritage Site located in Madhya Pradesh, India.
• These temples were built between 950 and 1050 AD by the Chandela dynasty.
• They are famous for their stunning architectural symbolism and erotic sculptures.
• Shikhara:
• The shikhara is the tower or spire on top of a Hindu temple, which rises over the sanctum sanctorum (garbhagriha).
• In the Nagara style, the shikhara is typically a tall, curvilinear structure, symbolizing Mount Meru.
• Garbhagriha:
• The garbhagriha is the innermost sanctum of a Hindu temple where the primary deity is enshrined.
• It is considered the most sacred part of the temple and is usually a small, dark chamber.

The correct answer is 1) Both (i) and (ii) are true.

Key Points

• Heavy taxes on imported goods are commonly used by governments to protect domestic industries by making imported goods more expensive, thereby encouraging consumers to buy locally produced goods.
• Import limits, or quotas, are another method used to restrict the quantity of a specific commodity that can be imported, ensuring that domestic producers have a significant share of the market.
• Both of these measures are part of a broader strategy known as protectionism, aimed at safeguarding national economic interests.
• Protectionist policies are often adopted to help nascent industries develop without the pressure of international competition.
• These measures can help in boosting the local economy, increasing employment, and fostering the growth of domestic industries.

Additional Information

• Tariffs:
• Tariffs are taxes imposed by a government on goods and services imported from other countries, making them more expensive and less attractive compared to domestic products.
• They are used to restrict imports, raise government revenue, or protect domestic industries from foreign competition.
• Quotas:
• Quotas are limits set by a government on the amount of a specific product that can be imported over a set period of time.
• This method directly restricts the quantity of goods entering a country, thereby protecting domestic industries from excessive foreign competition.
• Subsidies:
• Subsidies are financial aids provided by the government to domestic industries to lower their production costs and make their products more competitive against imported goods.
• They can take various forms, such as direct cash payments, tax breaks, or low-interest loans.
• Non-Tariff Barriers (NTBs):
• NTBs include various regulations and standards imposed by a country to restrict imports without using tariffs, such as stringent quality standards, licensing requirements, and customs procedures.
• These barriers can significantly impact the volume of imports and protect domestic industries.

The correct answer is Sama Chakeva.

Key Points

• Sama Chakeva is a popular festival celebrated in the state of Bihar.
• The festival is predominantly observed in the Mithila region of Bihar, which includes areas like Madhubani and Darbhanga.
• Sama Chakeva marks the celebration of the brother-sister relationship.
• The festival typically involves the making of clay idols of birds, which are then worshipped and floated in water bodies.
• The celebration usually takes place during the Kartik month of the Hindu calendar, immediately after Diwali.

Additional Information

• Me-Dam-Me-Phi:
• It is a festival celebrated by the Ahom community in Assam.
• The festival honors ancestors and is marked by rituals and offerings.
• Harela:
• Harela is celebrated in the state of Uttarakhand.
• It marks the beginning of the monsoon season and the sowing of new crops.
• Ali-Ai-Ligang:
• Ali-Ai-Ligang is a spring festival celebrated by the Mishing community in Assam.
• It is associated with agriculture and the sowing of paddy.

The correct answer is Western Ghats.

Key Points

• The Shola forests are a unique type of tropical montane forest found exclusively in the Western Ghats of India.
• These forests are characterized by their distinct mosaic of grasslands and stunted evergreen forests.
• The Shola forests are located at elevations ranging from 1,500 to 2,500 meters above sea level.
• They play a crucial role in preserving the biodiversity of the Western Ghats, which is recognized as a UNESCO World Heritage Site.
• The Shola forests are vital for water conservation, as they are the source of many rivers and streams in the region.

Additional Information

• Western Ghats:
• The Western Ghats, also known as Sahyadri, is a mountain range that runs parallel to the western coast of the Indian peninsula.
• It is one of the eight "hottest hotspots" of biological diversity in the world.
• The Western Ghats extend over six states: Gujarat, Maharashtra, Goa, Karnataka, Kerala, and Tamil Nadu.
• They are home to a variety of endemic species of flora and fauna.
• Biodiversity:
• Biodiversity refers to the variety and variability of life on Earth, encompassing the diversity within species, between species, and of ecosystems.
• Regions with high biodiversity, such as the Western Ghats, are crucial for maintaining ecological balance and providing ecosystem services.
• UNESCO World Heritage Site:
• A World Heritage Site is a landmark or area with legal protection by an international convention administered by UNESCO.
• The Western Ghats were inscribed as a UNESCO World Heritage Site in 2012 for their exceptional biodiversity and natural beauty.
• Water Conservation:
• Water conservation involves the strategies and activities to manage fresh water as a sustainable resource to protect the water environment and meet current and future human demand.
• The Shola forests contribute significantly to water conservation by acting as natural water reservoirs, feeding numerous rivers and streams.

The correct answer is Bhil.

Key Points

• The Ghoomar dance is a traditional folk dance of Rajasthan.
• It was originally performed by the Bhil tribal community of Rajasthan.
• The dance is typically performed by women, who dance in circles and twirl while wearing colorful ghagras (long skirts).
• Ghoomar is often performed during auspicious occasions and festivals such as Teej and Gangaur.
• The dance is known for its graceful movements and intricate footwork.

Additional Information

• History and Origin:
• The Ghoomar dance originated from the Bhil tribe, which is one of the largest tribal communities in India.
• The dance was later adopted by other Rajasthani communities and became an integral part of Rajasthani culture.
• Costumes and Music:
• Participants wear traditional Rajasthani attire, including ghagras, cholis, and odhnis.
• The dance is accompanied by folk music featuring instruments like dhol, dholak, and harmonium.
• Cultural Significance:
• Ghoomar is not just a dance but a social and cultural activity that brings communities together.
• It is performed to celebrate significant events such as weddings and festivals.
• Recognition:
• Ghoomar has gained international recognition and is performed at cultural events worldwide.
• It has been showcased in Bollywood films, further popularizing it.

The correct answer is Arun Shourie.

Key Points

• Arun Shourie was appointed as the first minister of the Ministry of Disinvestment.
• The Ministry of Disinvestment was created during the tenure of Prime Minister Atal Bihari Vajpayee.
• Arun Shourie held the position of Disinvestment Minister from 2000 to 2002.
• He played a significant role in the disinvestment of public sector units, including Bharat Aluminium Company (BALCO) and Hindustan Zinc.
• His tenure is noted for the initiation of major disinvestment policies in India.

Additional Information

• Ministry of Disinvestment:
• The Ministry of Disinvestment was established in 1999 during the Vajpayee Government.
• The primary objective was to oversee the disinvestment of government stakes in public sector enterprises.
• Disinvestment:
• Disinvestment involves the sale of government-owned assets or stakes in public sector enterprises to private entities.
• It aims to reduce the financial burden on the government and improve the efficiency of these enterprises.
• Bharat Aluminium Company (BALCO):
• BALCO was one of the first major public sector enterprises to be privatized in 2001.
• The government sold a 51% stake in BALCO to Sterlite Industries.
• Hindustan Zinc:
• Hindustan Zinc, a leading producer of zinc, was also disinvested during Arun Shourie’s tenure.
• A significant stake was sold to Sterlite Industries, making it the largest private shareholder.

The correct answer is Punjab.

Key Points

• Gatka is a traditional martial art form that originated in the state of Punjab, India.
• It is closely associated with the Sikh community and is often performed during religious and cultural festivals.
• The art of Gatka involves the use of various weapons such as sticks, swords, and shields.
• Gatka was included in the 37^th National Games, recognizing its cultural significance and promoting traditional sports.

Additional Information

• History and Origin:
• Gatka is believed to have originated during the times of Guru Hargobind, the sixth Sikh Guru, who emphasized the necessity of self-defense.
• The martial art has historical roots dating back to the 17^th century.
• Techniques and Training:
• Practitioners of Gatka are trained in the use of various traditional weapons and hand-to-hand combat techniques.
• The training emphasizes discipline, agility, and coordination.
• Modern Recognition:
• Gatka has been recognized by various sports organizations and is promoted at national and international levels.
• Efforts are being made to preserve and promote this traditional art form through various competitions and cultural programs.
• Cultural Significance:
• Gatka is not only a martial art but also a significant part of Sikh culture and heritage.
• It is performed during important Sikh festivals like Vaisakhi and Hola Mohalla, showcasing the martial spirit and valor of the Sikh community.

The correct answer is Sattriya.

Key Points

• Sattriya is a classical dance form of India that originated in the state of Assam.
• This dance was traditionally performed by male monks in the Vaishnavite monasteries called Sattras.
• Sattriya dance was introduced in the 15^th century by the saint-scholar Sankardev as a medium for religious expression and devotion.
• The dance is characterized by its spiritual themes, including tales from the life of Lord Krishna and other religious stories.

Additional Information

• Sankardev:
• He was a 15^th-16^th century saint-scholar, poet, playwright, and social-religious reformer in Assam.
• Sankardev is credited with the creation and propagation of the Neo-Vaishnavite movement in Assam.
• Sattras:
• Sattras are Vaishnavite monasteries that were established by Sankardev and his followers to promote the Neo-Vaishnavite culture and religion.
• These institutions are centers of religious, cultural, and educational activities in Assam.
• Other Classical Dances of India:
• Kathakali: A classical dance form from Kerala known for its elaborate costumes and dramatic performances.
• Kuchipudi: A classical dance from Andhra Pradesh, known for its graceful movements and strong narrative character.
• Odissi: A classical dance form from Odisha, characterized by its sculpturesque poses and fluid movements.
• Vaishnavism:
• It is one of the major traditions within Hinduism that worships Vishnu and his avatars, primarily Rama and Krishna.
• Vaishnavism emphasizes the devotion (bhakti) towards Vishnu as the Supreme God.

The correct answer is Article 3.

Key Points

• Article 3 of the Indian Constitution empowers the Parliament to form a new state by separation of territory from any state or by uniting any territories to a part of any state.
• The Parliament can also increase or diminish the area of any state, alter the boundaries or the name of any state under Article 3.
• Before introducing a bill under Article 3, the President must refer it to the state legislature concerned for expressing its views within a specified period.
• However, the Parliament can pass the bill with or without accepting the views of the state legislature.

Additional Information

• Article 2 provides the Parliament the power to admit or establish new states into the Union of India.
• Article 4 states that laws made under Articles 2 and 3 for the formation of new states are not to be considered amendments under Article 368.
• The process of altering state boundaries is essential for administrative efficiency and socio-economic development.
• Article 3 ensures the federal structure of India is maintained while allowing for flexibility in state reorganization.
• Some notable instances of state reorganization include the formation of states like Telangana (2014) and Uttarakhand (2000).

The correct answer is 0.8009.

Key Points

• According to the Census of India 2011, the literacy rate of Tamil Nadu was 80.09%.
• The literacy rate represents the percentage of people who can read and write with understanding.
• Tamil Nadu had a higher literacy rate compared to the national average of 74.04% in 2011.
• Among the southern states of India, Tamil Nadu was one of the states with significant educational achievements.

Additional Information

• Literacy Rate Definition
• Literacy rate is defined as the percentage of people aged 7 years and above who can read and write with understanding.
• Census of India
• The Census of India is a decennial exercise conducted by the Office of the Registrar General and Census Commissioner, India.
• The 2011 Census was the 15^th National Census of the country.
• Educational Initiatives in Tamil Nadu
• Tamil Nadu government has launched several schemes to improve literacy, including the Midday Meal Scheme and free education for girls up to postgraduate level.
• National Literacy Mission
• The National Literacy Mission aims to make 80 million adults literate, focusing on women and disadvantaged groups.
• It is a government initiative aimed at achieving total literacy in the country.

The correct answer is Cheap subsidised credit.

Key Points

• Cheap subsidized credit is not considered an official approach of microfinance delivery mechanisms in India.
• Microfinance delivery mechanisms in India typically involve structured programs like Self-Help Groups (SHGs) and Microfinance Institutions (MFIs).
• These mechanisms focus on providing financial services to low-income groups, aiming at financial inclusion and poverty alleviation.
• Subsidized credit schemes generally fall under broader financial inclusion initiatives but are not categorized specifically under microfinance delivery mechanisms.

Additional Information

• Self-Help Groups (SHGs) - Bank Linkage Programme:
• Launched by NABARD in 1992, this program links informal groups of women to banks for financial assistance.
• SHGs serve as a significant model for poverty alleviation, women's empowerment, and financial inclusion.
• Microfinance Institutions (MFIs) - Credit Lending Models:
• MFIs provide financial services to low-income groups, including small loans, savings accounts, and insurance.
• They operate under various models like joint liability groups, individual lending, and cooperative societies.
• Conventional Weaker-Section Lending by Banks:
• Banks are mandated to lend a portion of their portfolios to weaker sections, including small farmers, artisans, and other low-income groups.
• This includes priority sector lending targets set by the Reserve Bank of India (RBI).
• Microfinance:
• Microfinance refers to the provision of financial services to low-income individuals or groups who are typically excluded from traditional banking.
• It includes credit, savings, insurance, and remittance services aimed at fostering economic growth and self-sufficiency.

The correct answer is Article 371 H.

Key Points

• Article 371 H of the Indian Constitution grants special powers to the Governor of Arunachal Pradesh.
• Under this Article, the Governor has special responsibility with respect to law and order in the state.
• The Governor, in the discharge of his functions in relation to law and order, has the discretion to act according to his judgment.
• This provision was included to address the unique socio-political and security challenges in Arunachal Pradesh.

Additional Information

• Article 371 of the Indian Constitution contains a series of special provisions for various states in India to address their unique needs and challenges.
• Article 371 A pertains to special provisions with respect to the state of Nagaland, granting autonomy in religious or social practices, customary law, and administration of civil and criminal justice involving decisions according to Naga customary law.
• Article 371 D deals with special provisions for the state of Andhra Pradesh, particularly concerning equitable opportunities and facilities in public employment and education for people from different parts of the state.
• Article 371 G provides special provisions for the state of Mizoram, similar to those in Article 371 A for Nagaland, focusing on preserving the religious and social practices of the Mizos.

The correct answer is Profession.

Key Points

• Article 15 of the Indian Constitution prohibits discrimination on the grounds of religion, race, caste, sex, and place of birth.
• The term "profession" is not mentioned in Article 15 as a ground for discrimination.
• This article ensures that every citizen has equal access to public places and institutions, irrespective of the specified grounds.
• The provision also extends to the state, ensuring that no citizen is discriminated against in the matter of public employment or office under the state.

Additional Information

• Article 14:
• Ensures equality before the law and equal protection of the laws within the territory of India.
• It prohibits any discrimination by the state against any person.
• Article 16:
• Provides for equality of opportunity in matters of public employment.
• No citizen can be discriminated against in respect of employment or office under the state on grounds of religion, race, caste, sex, descent, place of birth, residence or any of them.
• Article 17:
• Abolishes "untouchability" and forbids its practice in any form.
• It is a direct outcome of the principle of equality enshrined in the Constitution.
• Article 18:
• Abolishes titles and makes it a punishable offense to confer or accept any title, except military or academic distinctions.
• Ensures that the principle of equality is maintained and that there is no aristocracy or elitism in the society.

The correct answer is National Waterway 2.

Key Points

• National Waterway 2 (NW-2) is a 891 km long stretch on the Brahmaputra River in Assam.
• This waterway extends from Dhubri to Sadiya in the state of Assam.
• It was declared as National Waterway 2 in 1988 under the National Waterways Act.
• NW-2 is significant for the transportation of cargo and passengers, contributing to the economic development of the region.

Additional Information

• National Waterways in India:
• India has a total of 111 National Waterways declared under the National Waterways Act, 2016.
• These waterways are intended to promote and develop inland water transport.
• Inland Water Transport:
• It is a mode of transport where goods and passengers are transported via navigable rivers, canals, and backwaters.
• This mode of transportation is cost-effective and environmentally friendly.
• Significance of NW-2:
• NW-2 serves as a major waterway for trade and commerce in the Northeast region of India.
• It plays a crucial role in the transportation of tea, coal, petroleum products, and other goods.
• Challenges:
• Challenges such as seasonal variations in water levels and the need for regular dredging impact the effectiveness of inland water transport.
• Infrastructure development and maintenance are critical for the efficient operation of these waterways.

The correct answer is Weekly channel.

Key Points

• The Indian Postal Department has introduced multiple channels to ensure quick delivery of mails in urban areas.
• The key channels include the Periodical channel, Business channel, and Metro channel.
• The Weekly channel is not part of the established six communication mail channels.
• These channels aim to streamline and expedite the sorting and delivery process of mail in large towns and cities.

Additional Information

• Periodical Channel:
• Used for handling periodicals and magazines.
• Ensures timely delivery of subscribed publications to readers.
• Business Channel:
• Catered to bulk mail from business enterprises.
• Includes business correspondence, invoices, and promotional material.
• Metro Channel:
• Specialized for mail in metropolitan areas.
• Designed to handle high mail volumes in large cities efficiently.
• Express Channel:
• Provides expedited delivery services for urgent mail.
• Commonly used for express parcels and important documents.

The correct answer is Dental caries.

Key Points

• Dental caries, also known as tooth decay or cavities, is a common long-term infection caused by the activity of bacteria in the mouth.
• Bacteria such as Streptococcus mutans metabolise sugars from food to produce acids.
• The produced acids lead to the demineralisation and destruction of the hard tissues of the teeth, primarily the enamel and dentin.
• Dental caries can develop into pain, tooth loss, and infection if left untreated.
• Preventive measures include maintaining good oral hygiene, reducing sugar intake, and regular dental check-ups.

Additional Information

• Demineralisation:
• Demineralisation is the process where minerals like calcium and phosphate are removed from the tooth enamel by acids produced by bacteria.
• This process weakens the tooth structure and makes it more susceptible to decay.
• Streptococcus mutans:
• Streptococcus mutans is a type of bacteria that plays a significant role in the development of dental caries.
• It adheres to the tooth surface and produces lactic acid as a by-product of sugar metabolism.
• Fluoride:
• Fluoride is a mineral that helps in remineralisation, strengthening the tooth enamel, and making it more resistant to acid attacks.
• It is commonly found in toothpaste and public water supplies.
• Preventive Dentistry:
• Preventive dentistry involves practices that help maintain oral health and prevent dental caries, such as regular brushing, flossing, and professional cleanings.
• It also includes dietary recommendations to reduce sugar intake and the application of dental sealants.
• Enamel:
• Enamel is the hard, outer layer of the tooth that protects it from decay and damage.
• Once enamel is eroded by acids, it cannot regenerate, making preventive measures crucial.

The correct answer is Assam.

Key Points

• Dehing Patkai Festival is celebrated in the state of Assam.
• This festival showcases the rich culture and heritage of Assam, including its traditional music, dance, and cuisine.
• The festival is named after the Dehing Patkai Wildlife Sanctuary, which is often referred to as the "Amazon of the East."
• It is organized annually by the Government of Assam to promote tourism and highlight the natural beauty of the state.
• The festival includes various activities such as adventure sports, tea heritage tours, and cultural performances.

Additional Information

• Assam's Cultural Heritage:
• Assam is known for its diverse cultural heritage, including various traditional dances like Bihu, Bagurumba, and Sattriya.
• The state is also famous for its classical music and traditional instruments like the Pepa and the Gogona.
• Dehing Patkai Wildlife Sanctuary:
• The Dehing Patkai Wildlife Sanctuary is a rainforest located in the Dibrugarh and Tinsukia districts of Assam.
• It is home to various species of flora and fauna, including elephants, tigers, and numerous bird species.
• Tourism in Assam:
• Assam is a major tourist destination in Northeast India, known for its natural beauty, wildlife, and tea gardens.
• Popular tourist spots include Kaziranga National Park, Manas National Park, and Majuli Island.
• Traditional Assamese Cuisine:
• Assamese cuisine is characterized by its use of fresh ingredients, including fish, meat, rice, and green leafy vegetables.
• Popular dishes include Assam Laksa, Pitha, and Masor Tenga (sour fish curry).

The correct answer is Shah Jahan.

Key Points

• Guru Hargobind was the sixth Sikh Guru and led the Sikh community in battles against the Mughal Empire.
• The Sikhs, under Guru Hargobind, defeated the Mughals four times during the reign of Shah Jahan.
• The battles were significant as they established the martial tradition within Sikhism, emphasizing the need for Sikhs to defend their faith and community.
• Guru Hargobind introduced the concept of Miri and Piri, representing temporal and spiritual authority.

Additional Information

• Guru Hargobind:
• He was the sixth of the ten Sikh Gurus and became Guru on 25 May 1606, following the martyrdom of his father, Guru Arjan.
• He constructed the Akal Takht, which stands in the Harmandir Sahib complex, as a symbol of political sovereignty and justice.
• Mughal-Sikh Conflicts:
• The battles between the Mughals and Sikhs were mainly due to the growing power and influence of the Sikh community.
• These conflicts were part of a larger series of confrontations between the Mughal Empire and various regional powers and communities.
• Miri and Piri:
• This concept introduced by Guru Hargobind denotes the dual responsibility of the Sikh community to lead a spiritual life while also taking up arms to defend justice.
• Miri represents temporal authority, while Piri signifies spiritual authority.
• Shah Jahan:
• Shah Jahan was the fifth Mughal emperor, reigning from 1628 to 1658.
• He is best known for commissioning the Taj Mahal, a mausoleum for his wife Mumtaz Mahal.

The correct answer is Part XX.

Key Points

• The procedure for amendments in the Constitution of India is laid down in Part XX of the Constitution.
• Article 368 of the Indian Constitution specifically deals with the power of Parliament to amend the Constitution and its procedure.
• An amendment can be initiated only by the introduction of a Bill for the purpose in either House of Parliament.
• The Bill must be passed in each House by a majority of the total membership of that House and by a majority of not less than two-thirds of the members of that House present and voting.

Additional Information

• Types of Amendments:
• Some amendments require a simple majority in Parliament.
• Others require a special majority, i.e., a two-thirds majority of the members present and voting.
• Amendments affecting federal provisions require the ratification by at least half of the State Legislatures.
• Significant Amendments:
• The 42^nd Amendment Act, 1976, known as the "Mini-Constitution," brought about widespread changes.
• The 44^th Amendment Act, 1978, reversed many provisions of the 42^nd Amendment.
• Judicial Review:
• The power of judicial review allows the Supreme Court and High Courts to determine the constitutional validity of amendments.
• The landmark case of Kesavananda Bharati v. State of Kerala (1973) established the Basic Structure Doctrine, limiting Parliament's power to amend the Constitution.
• Amendment Process:
• The process ensures that amendments are not made lightly and that there is a broad consensus.
• This process is designed to be a balance between rigidity and flexibility, ensuring stability while allowing necessary changes.

The correct answer is Option 3: -80ºC.

Key Points

• The tropopause is the boundary layer between the troposphere and the stratosphere.
• At the equator, the tropopause is located at an altitude of about 17 to 18 kilometers (55,000 to 60,000 feet).
• The air temperature at the tropopause over the equator is approximately -80ºC.
• This temperature is significantly lower than at the Earth's surface due to the decrease in temperature with altitude in the troposphere.
• The temperature at the tropopause varies with latitude and season, but it is generally coldest at the equator.

Additional Information

• Tropopause:
• The tropopause marks the top of the troposphere and the beginning of the stratosphere.
• It acts as a barrier to the mixing of tropospheric and stratospheric air.
• Temperature Gradient:
• The troposphere features a negative temperature gradient, meaning temperature decreases with altitude.
• In the stratosphere above the tropopause, the temperature increases with altitude.
• Equatorial Tropopause:
• The equatorial tropopause is higher and colder compared to the tropopause at higher latitudes.
• This is due to the intense solar heating in the equatorial region, leading to a higher convection and altitude of the tropopause.
• Stratospheric Temperature:
• The stratosphere, just above the tropopause, contains the ozone layer which absorbs UV radiation, causing a temperature increase with altitude.
• This positive temperature gradient in the stratosphere contrasts with the negative gradient in the troposphere.

The correct answer is Anup Jalota.

Key Points

• Anup Jalota is renowned as the 'Bhajan Samrat' of India for his exceptional contribution to devotional music.
• He has been awarded the Padma Shri, India's fourth highest civilian award, in 2012 for his contributions to the field of Art-Indian Classical Music - Vocal.
• Anup Jalota is known for his soulful renditions of devotional songs and ghazals, which have earned him a large following.
• He has released numerous albums featuring bhajans (devotional songs), ghazals, and other forms of light music.
• Jalota has also performed in various prestigious music concerts and festivals both in India and abroad.

Additional Information

• Bhajan:
• A bhajan is a type of devotional song in Indian religions, typically expressing love and devotion to a deity.
• Bhajans are often simple and lyrical, and they can be performed solo or in a group.
• Ghazal:
• A ghazal is a form of amatory poem or ode, originating in Arabic poetry, and is often sung in the Indian subcontinent.
• Ghazals are typically centered around themes of love, loss, and longing.
• Padma Shri:
• Padma Shri is the fourth highest civilian award in the Republic of India.
• It is awarded to citizens of India in recognition of their distinguished contribution in various spheres such as Arts, Education, Industry, Literature, Science, Sports, Medicine, Social Service and Public Affairs.
• Indian Classical Music:
• Indian classical music is categorized into two major traditions: Hindustani (North Indian) and Carnatic (South Indian).
• It is characterized by its raga (melodic framework) and tala (rhythmic patterns).

The correct answer is Tamil Nadu.

Key Points

• The 44^th Chess Olympiad was held in Chennai, Tamil Nadu, from July 28 to August 10, 2022.
• This was the first time that India hosted the Chess Olympiad, which is a biennial chess tournament.
• The event saw participation from over 180 countries, making it one of the largest chess tournaments in history.
• The venue for the event was the Four Points by Sheraton Mahabalipuram Resort and Convention Center.
• India fielded multiple teams in both the Open and Women's sections, showcasing the country's growing talent in chess.

Additional Information

• Chess Olympiad:
• The Chess Olympiad is a biennial chess tournament organized by FIDE, the International Chess Federation.
• It features both an Open section and a Women's section, with teams representing different countries.
• The Olympiad includes various events such as individual games, team games, and other cultural activities.
• FIDE (Fédération Internationale des Échecs):
• FIDE, or the International Chess Federation, is the governing body of international chess competition.
• Founded in Paris, France, on July 20, 1924.
• FIDE organizes world chess championships and other international chess competitions.
• Chennai:
• Chennai, formerly known as Madras, is the capital of the Indian state of Tamil Nadu.
• It is known for its cultural heritage, historical landmarks, and vibrant arts scene.
• Chennai has hosted several international events and is a significant center for education and industry in India.
• Indian Chess:
• India has a rich history in chess, often regarded as the birthplace of the game, where it originated as Chaturanga.
• Indian chess grandmasters like Vishwanathan Anand have significantly contributed to the global chess scene.
• The All India Chess Federation (AICF) is the governing body for chess in India.

The correct answer is Rajasthan.

Key Points

• Mame Khan is a renowned Indian folk singer known for his mesmerizing Sufi and folk music performances.
• He hails from the state of Rajasthan, which is known for its rich tradition of folk music.
• Khan belongs to the Manganiyar community, a traditional musician caste from Rajasthan.
• He has performed at various national and international platforms, bringing Rajasthani folk music to a global audience.
• Khan's music often features traditional instruments like the khartal, dholak, and harmonium.

Additional Information

• Rajasthani Folk Music
• Rajasthani folk music is characterized by its distinct melodies and rhythms, often reflecting the region's history and culture.
• It includes various forms such as Maand, Bhopa-Bhopi, and Panihari, each with its unique style and significance.
• Instruments commonly used include the sarangi, kamayacha, and morchang.
• This musical tradition is often passed down orally through generations within specific communities.
• Manganiyar Community
• The Manganiyars are a community of hereditary musicians in Rajasthan and parts of Sindh in Pakistan.
• They traditionally serve as court musicians for Rajput patrons but also perform for various social and religious events.
• Their music often includes themes of devotion, love, and historical tales.
• The community has been instrumental in keeping the folk music traditions alive and vibrant.
• Sufi Music
• Sufi music is a genre of music inspired by Sufism, the mystical dimension of Islam.
• It aims to induce a state of spiritual trance and is often performed during Sufi gatherings and festivals.
• Instruments like the tabla, harmonium, and sitar are commonly used in Sufi music.
• Prominent forms include Qawwali and Ghazal, which have found a significant place in South Asian music culture.
• Global Recognition
• Rajasthani folk music, including the performances by artists like Mame Khan, has gained international acclaim.
• These artists have performed at prestigious festivals and events around the world, promoting cultural exchange.
• Efforts by the government and cultural organizations have helped in preserving and promoting this rich heritage.
• Documentaries and music albums featuring Rajasthani folk music have contributed to its global popularity.

The correct answer is greater competition among producers.

Key Points

• Globalisation leads to a global market where producers from different countries compete, thereby increasing competition. (Source: World Bank)
• Increased competition often results in better products and services as producers strive to innovate and improve quality. (Source: International Monetary Fund)
• Consumers benefit from lower prices and a wider variety of goods and services due to heightened competition. (Source: OECD)
• Small and medium-sized enterprises (SMEs) face significant challenges but also opportunities to expand their markets internationally. (Source: United Nations Conference on Trade and Development)

Additional Information

• Globalisation:
• The process of interaction and integration among people, companies, and governments worldwide, driven by international trade and investment and aided by information technology.
• It leads to economic growth, cultural exchange, and technological advancements. (Source: World Trade Organization)
• Market Competition:
• The rivalry among sellers trying to achieve goals such as increasing profits, market share, and sales volume by varying the elements of the marketing mix: price, product, distribution, and promotion.
• Heightened competition can drive innovation and efficiency. (Source: Harvard Business Review)
• Trade Liberalization:
• The removal or reduction of restrictions or barriers on the free exchange of goods between nations, including tariffs, duties, and quotas.
• It is a key component of globalisation that facilitates greater competition. (Source: World Economic Forum)
• Economic Integration:
• Where countries coordinate their economic policies to reduce trade barriers and increase economic cooperation.
• Examples include the European Union (EU) and the North American Free Trade Agreement (NAFTA). (Source: European Commission)

The correct answer is 51 A (g).

Key Points

• Article 51A(g) of the Indian Constitution pertains to the fundamental duties of citizens.
• It explicitly mentions that it is the duty of every citizen of India to have compassion for living creatures.
• This article is part of the fundamental duties listed in Part IVA of the Constitution.
• The fundamental duties were added to the Constitution by the 42^nd Amendment Act, 1976.
• These duties are intended to serve as a constant reminder to citizens to promote a sense of discipline and commitment towards the nation.

Additional Information

• 42^nd Amendment Act, 1976:
• This amendment is also known as the "Mini-Constitution" due to its wide-ranging impact on the Constitution.
• It added ten fundamental duties to the Constitution under Article 51A.
• Fundamental Duties:
• Fundamental duties are non-justiciable, meaning they are not enforceable by the courts.
• They serve as moral obligations for citizens to promote patriotism and uphold the unity of India.
• Part IVA of the Constitution:
• This part was added by the 42^nd Amendment Act and consists of only one article, Article 51A.
• It lists the fundamental duties of citizens towards the nation.
• Importance of Compassion for Living Creatures:
• Promotes humane treatment and welfare of animals.
• Encourages environmental conservation and biodiversity.
• Fosters a society that values and respects all forms of life.

The correct answer is Golkonda.

Key Points

• The Bahmani Sultanate was a Muslim state of the Deccan in South India and one of the great medieval Indian kingdoms.
• After the collapse of the Bahmani kingdom, it was divided into five Deccan Sultanates: Golkonda, Bijapur, Ahmednagar, Bidar, and Berar.
• Golkonda was one of these five states and became a prominent center due to its diamond mines, including the famous Kollur Mine.
• The Qutb Shahi dynasty ruled Golkonda, and the region is known for its contributions to architecture, including the construction of the famous Golkonda Fort.

Additional Information

• Bahmani Sultanate:
• Founded in 1347 by Ala-ud-Din Hasan Bahman Shah after revolting against the Delhi Sultanate.
• It was the first independent Islamic kingdom in South India.
• The kingdom played a significant role in the history of the Deccan region until its decline in the early 16^th century.
• Qutb Shahi Dynasty:
• Ruled the Golkonda Sultanate from 1518 to 1687.
• Known for their patronage of Persian culture and language, as well as the development of regional architecture.
• The dynasty's rule ended when the Mughal Emperor Aurangzeb captured Golkonda in 1687.
• Golkonda Fort:
• Originally a mud fort built by the Kakatiya dynasty in the 13^th century.
• Expanded and fortified by the Qutb Shahi rulers to become a formidable stronghold.
• Famous for its advanced acoustics, palaces, and the Fateh Darwaza (Victory Gate).
• Diamond Mines:
• Golkonda was renowned for its diamond mines, which were among the most productive in the world.
• Notable diamonds from these mines include the Koh-i-Noor, Hope Diamond, and the Regent Diamond.
• The wealth from these mines significantly contributed to the prosperity of the region.

The correct answer is Services Sports Control Board.

Key Points

• The Services Sports Control Board (SSCB) topped the medals tally at the National Games 2022.
• SSCB clinched a total of 61 gold medals during the event.
• The National Games 2022 were held in various locations across Gujarat.
• SSCB consistently performs well in the National Games, showcasing the strength of athletes from the armed forces.

Additional Information

• National Games of India:
• The National Games is a multi-sport event held in India, modeled after the Olympic Games.
• The first edition of the National Games was held in 1924 in Lahore.
• The event aims to identify and nurture talent that can represent India at international competitions.
• Services Sports Control Board (SSCB):
• SSCB is responsible for promoting sports and organizing competitions within the Indian Armed Forces.
• It supports athletes in various sports disciplines, providing training and facilities.
• SSCB athletes often represent India in international competitions, including the Olympics.
• Key Participants in the National Games:
• States and Union Territories of India participate in the National Games.
• Sporting contingents from various state sports boards also compete.
• The event includes disciplines like athletics, swimming, gymnastics, and more.
• Significance of National Games:
• The games serve as a platform for athletes to showcase their talent at a national level.
• They help in the identification of potential athletes for international competitions.
• The event promotes sports culture and physical fitness across the country.

The correct answer is 110 m and 400 m.

Key Points

• The standard distance for men's hurdle events in athletics is 110 meters for the high hurdles and 400 meters for the intermediate hurdles.
• The 110 meters hurdles is a popular event in outdoor track and field competitions, especially in the Olympics and World Championships.
• The 400 meters hurdles is another significant event in major athletics championships, including the Olympics and World Championships.
• The hurdles in the 110 meters event are set at a height of 1.067 meters (42 inches).

Additional Information

• Hurdles:
• In hurdle races, athletes must sprint over a series of barriers placed at specific intervals.
• The hurdles are evenly spaced to ensure consistent rhythm and pacing.
• Technique:
• Proper technique in hurdling involves efficient clearance of the hurdles with minimal disruption to the athlete's running speed.
• Key aspects include the lead leg, trail leg, and arm movement.
• Historical Background:
• The men's 110 meters hurdles has been part of the Olympic Games since the first modern Olympics in 1896.
• The 400 meters hurdles was introduced in the 1900 Olympics.
• Women's Events:
• The standard distances for women's hurdle events are 100 meters and 400 meters.
• The women's 100 meters hurdles was introduced to the Olympics in 1972.

The correct answer is Gulamgiri.

Key Points

• Gulamgiri is a seminal work written by Jyotirao Phule in 1873.
• The book was written to expose the oppression faced by the lower castes in India.
• Gulamgiri translates to "Slavery" and compares the plight of the lower castes in India to the enslavement of African Americans in the United States.
• It was one of the first critiques of the caste system and sought to educate people about the injustices and inequalities perpetuated by it.

Additional Information

• Jyotirao Phule: An Indian social reformer, thinker, and writer who worked towards the eradication of untouchability and the caste system.
• Satya Shodhak Samaj: Founded by Phule in 1873, the organization aimed to liberate the lower castes from social and economic exploitation.
• Education for All: Phule and his wife, Savitribai Phule, were pioneers in promoting education for women and the lower castes in India.
• Critique of Brahmanism: Phule's writings, including "Gulamgiri," critically examined and challenged the dominance of Brahmanism in Indian society.

The correct answer is 1) Bq.

Key Points

• Becquerel (Bq) is the SI unit for measuring radioactivity.
• It is defined as one disintegration per second.
• The unit is named after the French physicist Henri Becquerel, who discovered radioactivity in 1896.
• Becquerel is widely used in fields such as nuclear medicine and radiology.
• The symbol for Becquerel is Bq.

Additional Information

• Radioactivity:
• Radioactivity is the process by which unstable atomic nuclei lose energy by emitting radiation.
• Curie (Ci):
• The Curie, symbolized as Ci, is a non-SI unit of radioactivity, where 1 Ci = 3.7 x 10¹⁰ disintegrations per second.
• Gray (Gy):
• The Gray, symbolized as Gy, is the SI unit of absorbed radiation dose, where 1 Gy = 1 joule of radiation energy absorbed per kilogram of matter.
• Sievert (Sv):
• The Sievert, symbolized as Sv, is the SI unit used to measure the health effect of ionizing radiation, where 1 Sv represents a significant biological effect.

The correct answer is Ancylostoma.

Key Points

• Ancylostoma is the genus to which the hookworm parasite belongs.
• Hookworms are nematode parasites that infect the intestines of their hosts.
• They are primarily spread through contact with infected soil, where the larvae can penetrate the skin.
• Common species of hookworms in the Ancylostoma genus include Ancylostoma duodenale and Ancylostoma caninum.
• Infections can lead to conditions such as anemia and protein deficiency due to blood loss.

Additional Information

• Hookworm Life Cycle:
• Eggs are passed in the feces of an infected host.
• Larvae hatch in the soil and can survive for several weeks.
• Infective larvae penetrate the skin of humans, typically through bare feet.
• Larvae migrate through the bloodstream to the lungs, are coughed up, swallowed, and mature in the intestines.
• Symptoms of Hookworm Infection:
• Symptoms can include abdominal pain, diarrhea, weight loss, fatigue, and anemia.
• Severe infections can lead to significant blood loss and nutritional deficiencies.
• Prevention and Control:
• Wearing shoes to avoid contact with contaminated soil.
• Proper sanitation and disposal of human feces.
• Periodic deworming in endemic areas.
• Treatment:
• Anthelmintic medications such as albendazole or mebendazole are commonly used.
• Supplemental iron may be needed to address anemia.

The correct answer is Arbitration and Conciliation Act, 1996.

Key Points

• The Arbitration and Conciliation Act, 1996 governs arbitration proceedings in India, including international commercial arbitration.
• This Act is based on the UNCITRAL Model Law on International Commercial Arbitration, reflecting international standards.
• It provides a comprehensive framework for both domestic and international arbitration, ensuring that disputes are resolved efficiently.
• The Supreme Court of India can initiate and enforce arbitration under this Act, ensuring that arbitration agreements are upheld and arbitral awards are executed.
• The Act has been amended several times, most recently in 2019, to enhance its efficiency and transparency.

Additional Information

• UNCITRAL Model Law:
• The UNCITRAL Model Law on International Commercial Arbitration was adopted by the United Nations Commission on International Trade Law (UNCITRAL) in 1985.
• It aims to assist countries in reforming and modernizing their arbitration laws to ensure uniformity and fairness in the resolution of international commercial disputes.
• The Model Law provides a framework that nations can adopt to ensure that their arbitration laws are aligned with international standards.
• Arbitration Agreement:
• An arbitration agreement is a written agreement between parties to submit their disputes to arbitration instead of going to court.
• Such agreements are typically included in commercial contracts to ensure that any future disputes are resolved through arbitration.
• Arbitral Award:
• An arbitral award is the decision made by an arbitrator or arbitral tribunal in an arbitration proceeding.
• It is binding on the parties involved and can be enforced in the same manner as a court judgment.
• International Commercial Arbitration:
• International commercial arbitration is a method of resolving disputes arising out of international commercial transactions.
• It involves parties from different countries and is governed by international treaties and conventions, such as the New York Convention.

The correct answer is reducing inequalities of income and wealth.

Key Points

• Increased tax rates on higher income groups are aimed at redistributing wealth more equitably within society.
• This measure helps to reduce the income gap between the rich and the poor, fostering a more balanced economic structure.
• It can lead to increased government revenues, which can be used to fund social welfare programs and public services.
• Progressive taxation is a key tool in addressing economic inequality and ensuring that wealthier individuals contribute a fair share to the economy.

Additional Information

• Progressive Taxation:
• It is a tax system in which the tax rate increases as the taxable amount increases.
• It aims to reduce the tax burden on low-income earners and increase it on high-income earners.
• Income Redistribution:
• It involves the transfer of income from wealthier individuals to those with lower incomes through taxation and welfare programs.
• The goal is to reduce economic disparities and provide a safety net for the less fortunate.
• Social Welfare Programs:
• These are government initiatives designed to provide support to the needy, including unemployment benefits, food assistance, and healthcare services.
• Funded by tax revenues, these programs aim to improve the quality of life for disadvantaged groups.
• Public Services:
• Services provided by the government to all citizens, including education, transportation, and infrastructure.
• Funded through taxation, public services are essential for the overall development and well-being of society.

The correct answer is Maharashtra.

Key Points

• According to the Census of India 2011, Maharashtra had a population of approximately 11.24 crores, making it one of the most populous states in India.
• The state's population density as per the 2011 census was 365 people per square kilometer.
• Maharashtra's urban population accounts for 45.2% of its total population, making it one of the most urbanized states in the country.
• Mumbai, the capital city of Maharashtra, is the most populous city in India with a population of approximately 12.4 million according to the 2011 census.

Additional Information

• Census of India 2011:
• The Census of India 2011 was the 15^th National Census conducted in the country.
• It covered various aspects like population, housing, assets, and amenities.
• The data collected during the census is used for planning and policy formulation by the government.
• Population Density:
• Population density is defined as the number of people living per unit area, usually per square kilometer or mile.
• It helps in understanding the distribution of population across different regions.
• Urbanization:
• Urbanization refers to the population shift from rural to urban areas.
• It is associated with industrialization and modernization.
• Urban areas tend to have better infrastructure, amenities, and employment opportunities compared to rural areas.
• Mumbai:
• Mumbai is the financial, commercial, and entertainment capital of India.
• It is home to the Bombay Stock Exchange, one of the oldest stock exchanges in Asia.
• The city is also known for Bollywood, the Hindi-language film industry.

The correct answer is Vinayak Damodar Savarkar.

Key Points

• Vinayak Damodar Savarkar, also known as Veer Savarkar, was an Indian independence activist, lawyer, and writer.
• In 1904, he founded a secret society of revolutionaries called Abhinav Bharat Society in Pune, Maharashtra.
• The main objective of Abhinav Bharat was to create a network of young revolutionaries committed to the cause of Indian independence.
• Abhinav Bharat played a significant role in inspiring other revolutionary groups and activities against the British colonial rule in India.
• Vinayak Damodar Savarkar was also a key figure in the Hindu nationalist movement and authored several works on Indian history and culture.

Additional Information

• Revolutionary Activities:
• Abhinav Bharat was involved in various revolutionary activities including armed resistance against British officials.
• It drew inspiration from Italian revolutionary movements and was initially called Mitra Mela before being renamed.
• Vinayak Damodar Savarkar's Imprisonment:
• In 1909, Savarkar was arrested for his involvement in revolutionary activities and was sentenced to life imprisonment in the Andaman Islands.
• He spent nearly a decade in the Cellular Jail, also known as Kala Pani.
• Literary Contributions:
• While imprisoned, Savarkar wrote several influential works including "The First War of Indian Independence of 1857."
• His writings were instrumental in promoting revolutionary ideas and inspiring future freedom fighters.
• Hindutva Ideology:
• Post his release, Savarkar became a prominent ideologue of Hindutva, advocating for Hindu nationalism.
• He wrote the book "Hindutva: Who is a Hindu?" in which he outlined his vision of a Hindu nation.

The correct answer is 1881.

Key Points

• The first synchronized census in India was conducted in 1881 under the British rule.
• Since 1881, censuses have been carried out every ten years without any disruptions.
• The census operation is one of the largest administrative exercises in the world.
• It provides comprehensive data on the population, housing, economic activities, social and cultural aspects, and demographic characteristics.

Additional Information

• Decennial Census:
• The decennial census provides critical data for planning and policy-making at all levels of government.
• The census data is used for the delimitation of constituencies and allocation of representation to Parliament and state legislative assemblies.
• Registrar General and Census Commissioner:
• The office of the Registrar General and Census Commissioner, India, under the Ministry of Home Affairs, is responsible for conducting the Census.
• This office is also responsible for the registration of births and deaths in the country.
• Technology in Census:
• Recent censuses have increasingly incorporated technology to improve data collection, processing, and dissemination.
• The 2021 Census is expected to use mobile apps for data collection for the first time.
• Uses of Census Data:
• Census data is vital for monitoring and evaluating government programs and initiatives.
• It provides a basis for various socio-economic research and analysis.

The correct answer is Mark Twain.

Key Points

• Mark Twain is the pen name of Samuel Langhorne Clemens, an American writer and humorist born on November 30, 1835.
• Twain is best known for his novels "The Adventures of Tom Sawyer" (1876) and "The Adventures of Huckleberry Finn" (1884), the latter often called "The Great American Novel."
• "The Adventures of Huckleberry Finn" is recognized for its vivid descriptions of people and places along the Mississippi River.
• Mark Twain's writing is noted for its humor, social criticism, and portrayal of American culture and values during the 19^th century.

Additional Information

• Literary Style:
• Twain’s writing style combines colloquial speech with a keen social observation, making his works both accessible and insightful.
• His use of regional dialects and vivid descriptions brought authenticity and life to his characters and settings.
• Social Criticism:
• "The Adventures of Huckleberry Finn" addresses themes of race, identity, and morality, offering a critical view of the pre-Civil War South.
• Twain’s works often critique societal norms and injustices, making them relevant to both his time and modern discussions.
• Influence:
• Mark Twain is considered one of the greatest American writers and has influenced countless authors with his unique style and themes.
• His books remain a staple in American literature curricula and continue to be studied for their cultural and historical significance.
• Legacy:
• Twain’s legacy extends beyond literature; he was also a noted lecturer, satirist, and entrepreneur.
• The Mark Twain House & Museum in Hartford, Connecticut, preserves his legacy and offers insights into his life and works.

The correct answer is Satavahana.

Key Points

• Simuka was the founder of the Satavahana dynasty, which emerged in the post-Mauryan period in ancient India.
• The Satavahana dynasty is also known as the Andhra dynasty.
• Simuka's reign is believed to have begun around 230 BCE and lasted until 207 BCE.
• The Satavahanas are known for their significant contributions to Indian culture, trade, and administration.
• The Satavahana dynasty ruled a substantial part of central and southern India, including modern-day Maharashtra, Madhya Pradesh, and Andhra Pradesh.

Additional Information

• Satavahana Administration:
• The Satavahana rulers followed a well-organized administrative structure, with provinces called Janapadas.
• Their administration was marked by the use of Prakrit language and inscriptions in the Brahmi script.
• Trade and Economy:
• The Satavahanas played a crucial role in maritime trade, establishing trade links with the Roman Empire and Southeast Asia.
• They issued a large number of coins made of lead, copper, and silver, facilitating commerce.
• Cultural Contributions:
• The Satavahana period saw the flourishing of Buddhist art and architecture, including the construction of stupas and viharas.
• The famous Amaravati Stupa is attributed to the Satavahana reign.
• Decline of the Dynasty:
• The Satavahana dynasty gradually declined by the 3^rd century CE, with its territories being taken over by emerging regional powers like the Ikshvakus and the Vakatakas.

The correct answer is how technology can bring revolutionary changes in agricultural output.

Key Points

• The Green Revolution involved the introduction of high-yielding varieties (HYVs) of seeds, especially for wheat and rice, which significantly increased agricultural production in India.
• It included the widespread use of chemical fertilizers and pesticides to enhance crop yield and protect plants from pests and diseases.
• Advanced irrigation techniques, such as tube wells and water pumps, were introduced to ensure a consistent water supply, reducing dependency on monsoon rains.
• The adoption of modern agricultural practices and machinery, such as tractors and harvesters, helped in reducing manual labor and increasing efficiency in farming operations.

Additional Information

• High-Yielding Varieties (HYVs):
• HYVs are seeds engineered to produce more grain per plant, which was a key component of the Green Revolution.
• These seeds were more responsive to chemical fertilizers and irrigation, leading to increased productivity.
• Chemical Fertilizers and Pesticides:
• The use of chemical fertilizers like nitrogen, phosphorus, and potassium (NPK) played a crucial role in enhancing soil fertility and crop growth.
• Pesticides helped in controlling pests and diseases, ensuring healthier crops and higher yields.
• Irrigation Techniques:
• Efficient irrigation methods, such as drip irrigation and sprinkler systems, were introduced to optimize water usage.
• These techniques helped in areas with scarce water resources, ensuring a steady supply for crops.
• Mechanization of Agriculture:
• The introduction of tractors, harvesters, and other machinery reduced the dependence on manual labor and increased farming efficiency.
• Mechanization also allowed for timely planting and harvesting, which is critical for maximizing yields.
• Impact on Food Security:
• The Green Revolution significantly improved food security in India, transforming the country from a food-deficient nation to a self-sufficient one.
• It helped in stabilizing food prices and making food more accessible to the population.

The correct answer is Shah Jahan.

Key Points

• The Red Fort, also known as Lal Qila, was commissioned by Mughal Emperor Shah Jahan in 1638.
• Construction of the fort began in 1638 and was completed in 1648.
• The fort served as the main residence of the Mughal emperors for nearly 200 years, until 1857.
• It is located in the center of Delhi and houses a number of museums.
• The fort's design reflects the peak of Mughal creativity, which combined Persian, Timurid, and Indian architectural styles.

Additional Information

• Shah Jahan:
• Full name: Shahab-ud-din Muhammad Khurram.
• He was the fifth Mughal emperor, ruling from 1628 to 1658.
• He is also known for commissioning the Taj Mahal in Agra.
• His reign is often considered the golden age of Mughal architecture.
• Mughal Architecture:
• Characterized by large domes, massive halls, and intricate ornamentation.
• Other notable structures include the Jama Masjid, Agra Fort, and the Shalimar Gardens.
• It represents a blend of Islamic, Persian, Turkish, and Indian architectural styles.
• Red Fort:
• It was designated a UNESCO World Heritage Site in 2007.
• It symbolizes the zenith of Mughal creativity under Shah Jahan.
• The fort's walls stretch over 2.41 kilometers (1.5 miles) and vary in height from 18 meters (59 feet) on the river side to 33 meters (108 feet) on the city side.
• UNESCO World Heritage Sites in India:
• India has 40 UNESCO World Heritage Sites as of 2023.
• These include cultural, natural, and mixed sites of importance.
• The Taj Mahal, Qutub Minar, and Jaipur City are some of the notable examples.

The correct answer is Volcanism.

Key Points

• Volcanism refers to the process through which magma (lava) is expelled from beneath the Earth's crust to its surface.
• This process is primarily responsible for the formation of volcanic landforms such as mountains, islands, and plateaus.
• Volcanism involves the eruption of molten rock, gases, and ash from a volcano, which can occur explosively or effusively.
• It plays a crucial role in the recycling of the Earth's crust and the release of gases from the interior to the atmosphere.
• The movement of lava over the Earth's surface can create new land and significantly alter existing landscapes.

Additional Information

• Weathering:
• Weathering is the process of breaking down rocks, soil, and minerals through direct contact with the Earth's atmosphere, water, and biological organisms.
• It is a gradual process that does not involve the movement of lava.
• Exogenic Processes:
• Exogenic processes are external processes such as erosion, weathering, and sedimentation that shape the Earth's surface.
• These processes are driven by external forces like wind, water, and ice.
• Diastrophism:
• Diastrophism refers to the deformation of the Earth's crust due to tectonic forces, leading to the formation of features such as mountains and faults.
• It does not involve the movement of lava but rather the movement of the Earth's crust.
• Types of Volcanic Eruptions:
• Effusive Eruptions: Characterized by the outpouring of lava onto the ground.
• Explosive Eruptions: Involves violent explosions that eject ash, gas, and rock fragments into the air.
• Both types of eruptions are part of the process of volcanism.

The correct answer is Pradhan Mantri Bharatiya Janaushadhi Pariyojana.

Key Points

• The Pradhan Mantri Bharatiya Janaushadhi Pariyojana (PMBJP) aims to provide quality medicines at affordable prices to the masses.
• It was launched by the Department of Pharmaceuticals under the Ministry of Chemicals and Fertilizers, Government of India.
• The scheme focuses on creating awareness about generic medicines and reducing the healthcare cost of citizens.
• Under PMBJP, dedicated outlets known as Pradhan Mantri Bharatiya Janaushadhi Kendras are established to sell generic medicines.
• These Kendras provide medicines that are equivalent in quality and efficacy to expensive branded drugs.

Additional Information

• Generic Medicines:
• Generic medicines are drugs that are comparable to brand-name drugs in dosage form, strength, route of administration, quality, and performance characteristics.
• They are typically sold at lower prices than branded medicines.
• The use of generic medicines can significantly reduce healthcare costs for both individuals and healthcare systems.
• Implementation and Reach:
• As of the latest data, there are over 7,500 Janaushadhi Kendras across India.
• The scheme has been implemented in almost every state and Union Territory, ensuring wide accessibility.
• Objective:
• The primary objective of PMBJP is to ensure availability of quality medicines at affordable prices.
• It also aims to create awareness about the efficacy of generic medicines among the public.
• Quality Assurance:
• The medicines sold at Janaushadhi Kendras are tested for quality assurance in NABL (National Accreditation Board for Testing and Calibration Laboratories) accredited laboratories.
• This ensures that the medicines are safe and effective for use.

The correct answer is Odisha.

Key Points

• The Devadasi National Award is an honor given to distinguished individuals in the field of dance.
• This award ceremony takes place annually at the Devadasi National Dance Festival.
• The festival is held at the pilgrim town of Puri in Odisha.
• The award recognizes excellence in classical dance forms, particularly Odissi dance.
• The Devadasi National Festival is a significant cultural event that attracts artists and audiences from across the country.

Additional Information

• Odissi Dance:
• Odissi is one of the eight classical dance forms of India, originating from the state of Odisha.
• It is known for its grace, fluidity, and expressiveness.
• The dance form is characterized by intricate movements of the head, bust, and torso.
• Odissi traditionally depicts religious stories and spiritual ideas, particularly those of Vaishnavism.
• Devadasi Tradition:
• The term "Devadasi" refers to women who were dedicated to worship and service of a deity or a temple for the rest of their lives.
• The tradition has ancient roots and was prevalent in many parts of India.
• Devadasis were highly skilled in classical dance and music, performing in temple rituals and royal courts.
• The practice has faced significant social changes and criticism over the centuries.
• Puri:
• Puri is a coastal city and a major pilgrimage site in the state of Odisha.
• It is famous for the Jagannath Temple, which is part of the Char Dham pilgrimage sites.
• Puri hosts the annual Rath Yatra, a significant religious festival attracting millions of devotees.
• Cultural Significance:
• The Devadasi National Festival is an effort to preserve and promote the rich cultural heritage of classical dance.
• It provides a platform for artists to showcase their talent and connect with a larger audience.
• Such cultural events play a crucial role in sustaining traditional art forms in the modern era.

The correct answer is Swami Vivekanand.

Key Points

• Swami Vivekananda was an Indian Hindu monk and a chief disciple of the 19^th-century Indian mystic Ramakrishna.
• He is best known for his speech which began with "Sisters and brothers of America ...," at the Parliament of the World's Religions in Chicago in 1893.
• Swami Vivekananda emphasized that the Vedanta philosophy could serve as a universal religion.
• He believed that Vedanta is not confined to Hinduism but is a science of spirituality that transcends all religions.

Additional Information

• Vedanta:
• Vedanta is one of the six orthodox schools of Hindu philosophy.
• It is based on the teachings of the Upanishads, which are a collection of ancient Sanskrit texts that expound on the nature of reality and the self.
• Vedanta emphasizes the idea of Brahman (the ultimate reality) and Atman (the individual soul), and their unity.
• Ramakrishna Mission:
• Founded by Swami Vivekananda in 1897, the mission aims to promote the teachings of Ramakrishna Paramahamsa.
• It focuses on religious and social service, including education, health care, and relief efforts.
• Parliament of the World's Religions:
• The first Parliament was held in Chicago in 1893.
• It is considered a landmark event for interfaith dialogue.
• Swami Vivekananda's address at this event brought him international recognition.
• Universal Religion:
• Swami Vivekananda's concept of a universal religion is based on the idea that all religions are different paths leading to the same goal.
• He believed that Vedanta could serve as a foundation for a universal religion, promoting harmony and peace among different faiths.

The correct answer is Limited and restricted.

Key Points

• Pteridophytes, commonly known as ferns and their relatives, exhibit a limited and restricted distribution in specific geographical regions.
• These plants are generally found in moist and shaded environments, such as tropical and temperate forests.
• Their spread is restricted due to their requirement for water for fertilization, which limits their habitat range.
• Many species of pteridophytes are endemic, meaning they are native to and found only in specific regions.
• Factors such as climatic conditions, soil type, and altitude play significant roles in determining the distribution of pteridophytes.

Additional Information

• Pteridophytes are a group of vascular plants that reproduce via spores and do not produce seeds or flowers.
• They are considered to be the first true vascular plants and include ferns, horsetails, clubmosses, and whisk ferns.
• Endemism refers to species that are native to a particular geographical region and are not naturally found elsewhere.
• Pteridophytes have significant ecological roles, including soil formation, nutrient cycling, and providing habitats for other organisms.
• These plants are also important in studies of plant evolution and biodiversity due to their ancient origins and diverse forms.

The correct answer is option 4.

Key Points

• The Rigveda Samhita is divided into ten books, also known as Mandalas.
• These ten Mandalas are further classified into two groups: the Family Books (Mandalas 2-7) and the remaining books (Mandalas 1, 8-10).
• The Family Books are considered the oldest part of the Rigveda.
• The Rigveda is one of the four sacred texts (Vedas) of ancient India, composed in Vedic Sanskrit.

Additional Information

• Rigveda:
• The Rigveda is one of the oldest known texts in any Indo-European language.
• It comprises hymns dedicated to various deities, including Indra, Agni, and Soma.
• The Rigveda is an important source for understanding the early Vedic culture and religion.
• Vedic Literature:
• Vedic literature is divided into four main collections: Rigveda, Samaveda, Yajurveda, and Atharvaveda.
• Each Veda has four parts: Samhitas (hymns), Brahmanas (rituals), Aranyakas (theological discussions), and Upanishads (philosophical teachings).
• Mandalas:
• Each Mandala in the Rigveda is a collection of hymns or mantras.
• The Mandalas are not of uniform length; some are significantly longer than others.
• They are traditionally attributed to various ancient rishis (sages).
• Language and Composition:
• The hymns of the Rigveda were composed in Vedic Sanskrit, an ancient form of the Sanskrit language.
• The composition of the Rigveda is believed to have occurred over several centuries.

The correct answer is 1) Mizoram.

Key Points

• Mizoram recorded the least decadal growth in literacy rate among Indian states as per the Census 2011.
• The literacy rate in Mizoram increased from 88.8% in 2001 to 91.6% in 2011, marking a growth of 2.8%.
• In contrast, other states such as Tripura and Kerala showed higher decadal growth rates in literacy.
• Mizoram's high base literacy rate in 2001 contributed to the smaller percentage increase over the decade.

Additional Information

• Literacy Rate Definition:
• The literacy rate is defined as the percentage of people aged 7 years and above who can read and write with understanding in any language.
• Census 2011:
• The Census 2011 is the 15^th National Census survey conducted by the Government of India.
• It provides comprehensive data on various demographic parameters including literacy rates.
• Kerala's Literacy:
• Kerala had the highest literacy rate in India as per Census 2011, with a literacy rate of 94%.
• Kerala's focused educational policies have historically contributed to its high literacy rates.
• Tripura's Literacy Growth:
• Tripura saw a significant increase in its literacy rate, from 73.2% in 2001 to 87.2% in 2011, marking a growth of 14%.
• Importance of Literacy:
• Higher literacy rates contribute to economic growth, poverty reduction, and improved health outcomes.
• Literacy empowers individuals and enhances their ability to participate fully in societal activities.

The correct answer is Chief Minister.

Key Points

• The Chief Minister advises the Governor on proroguing the session of the State Legislature.
• Proroguing refers to the ending of a session of the legislature, after which a new session may be convened.
• This advice is given by the Chief Minister as part of their executive role in the state government.
• The Governor acts on this advice in accordance with the provisions of the Constitution of India.

Additional Information

• State Legislature:
• The State Legislature consists of the Governor and one or two houses, as per the state's constitution.
• In states with bicameral legislatures, there is a Legislative Assembly (Vidhan Sabha) and a Legislative Council (Vidhan Parishad).
• Governor:
• The Governor is the constitutional head of the state, appointed by the President of India.
• The Governor's role includes summoning, proroguing, and dissolving the State Legislature on the advice of the Chief Minister and the Council of Ministers.
• Proroguing:
• Proroguing is the termination of a session of the legislature without dissolving it.
• It results in the adjournment of all pending legislative business until the next session.
• Executive Role of Chief Minister:
• The Chief Minister is the head of the state government and leads the Council of Ministers.
• The Chief Minister advises the Governor on various matters, including legislative sessions, state policy, and administration.

Counting triangles are there in the given figure:

Hence, the correct answer is "11".

The correct mirror image of the given figure is:

Hence, the correct answer is "Option 4".

Given equation: 32 × 5 + 12 ÷ 4 - 18 = 29

Option 1) ÷ and ×

Two signs need to be interchanged then:

⇒ 32 ÷ 5 + 12 × 4 - 18 = 29

⇒ 6.4 + 12 × 4 - 18 = 29

⇒ 6.4 + 48 - 18 = 29

⇒ 54.4 - 18 = 29

⇒ 36.4 ≠ 29

Option 2) - and ×

Two signs need to be interchanged then:

⇒ 32 - 5 + 12 ÷ 4 × 18 = 29

⇒ 32 - 5 + 3 × 18 = 29

⇒ 32 - 5 + 54 = 29

⇒ 86 - 5 = 29

⇒ 81 ≠ 29

Option 3) - and +

Two signs need to be interchanged then:

⇒ 32 × 5 - 12 ÷ 4 + 18 = 29

⇒ 32 × 5 - 3 + 18 = 29

⇒ 160 - 3 + 18 = 29

⇒ 178 - 3 = 29

⇒ 175 ≠ 29

Option 4) + and ×

Two signs need to be interchanged then:

⇒ 32 + 5 × 12 ÷ 4 - 18 = 29

⇒ 32 + 5 × 3 - 18 = 29

⇒ 32 + 15 - 18 = 29

⇒ 47 - 18 = 29

⇒ 29 = 29

Hence, the correct answer is "+ and ×​".

To find the opposite surface of '1', we need to compare the common surface in the given dices,

So, From Dice 1 and Dice 2,

From both dices, 5 is common and on the same surface. So, all remaining surface will be opposite to each other.

5→1

3→4

6→2

So, 5 will be opposite to 1.

Hence, the correct answer is "5".

The correct mirror image of the given figure is:

Hence, the correct answer is "Option 3".

Statements:

All Tears are Salts.

Some Tears are Crocodiles.

The least possible Venn diagram is as follows:

Conclusions:

I. All Crocodiles are Tears. - False (because Some Tears are Crocodiles given. So, All Crocodiles are Tears can be possible but not definite)

II. All Crocodiles are Salts. - False (because Some Tears are Crocodiles and All Tears are Salts given. So, All Crocodiles are Salts can be possible but not definite)

Hence, the correct answer is "Neither conclusion I nor II follows".

The logic followed here is: 

Logic: (1^st number × 3^rd number) + 8 = 2^nd number.

Now,

For (2, 14, 3):

⇒ (2 × 3) + 8

= 6 + 8 = 14.

For (4, 28, 5)

⇒ (4 × 5) + 8

= 20 + 8 = 28.

Similarly, for Option 3: (7, 22, 2)

⇒ (7 × 2) + 8

= 14 + 8 = 22.

Hence, the correct answer is Option 3.

The figure that completes the pattern:

Hence, the correct answer is "Option 3".

The figure that completes the pattern:

Hence, the correct answer is "Option 1".

Given equation: 39 + 4 ÷ 5 - 57 × 3 = 40 

Option 1) ÷ and ×

Two signs need to be interchanged then:

⇒ 39 + 4 × 5 - 57 ÷ 3 = 40

⇒ 39 + 4 × 5 - 19 = 40 

⇒ 39 + 20 - 19 = 40

⇒ 59 - 19 = 40 

⇒ 40 = 40 

Option 2) ÷ and +

Two signs need to be interchanged then:

⇒ 39 ÷ 4 + 5 - 57 × 3 = 40

⇒ 9.75 + 5 - 57 × 3 = 40 

⇒ 9.75 + 5 - 171 = 40 

⇒ 14.75 - 171 = 40

⇒ -156.25 ≠ 40 

Option 3) - and +

Two signs need to be interchanged then:

⇒ 39 + 4 ÷ 5 - 57 × 3 = 40 

⇒ 39 + 0.8 - 57 × 3 = 40

⇒ 39 + 0.8 - 171 = 40

⇒ 39.8 - 171 = 40

⇒ -131.2 ≠ 40

Option 4) - and ×

Two signs need to be interchanged then:

⇒ 39 + 4 ÷ 5 × 57 - 3 = 40

⇒ 39 + 0.8 × 57 - 3 = 40

⇒ 39 + 45.6 - 3 = 40

⇒ 84.6 - 3 = 40

⇒ 81.6 ≠ 40

Hence, the correct answer is "÷ and +".

The logic followed here is:

Logic: (1^st number)² = 2^nd number.

Now,

For, 13 : 169

⇒ 13² = 169.

For, 21 : 441

⇒ 21² = 441.

Similarly, for 9 : ?

⇒ 9² = 81.

Hence, the correct answer is Option 3.

The logic followed here is:

From figure 1 to 2 and figure 3 to 4:

All 4 corner symbols are shifting in clockwise direction.

Middle symbols are interchanging their position.

From figure 2 to 3 and figure 4 to 5:

Top-left, and bottom-right elements are interchanging their position.

Top-right, bottom-left and middle 2 elements are shifting in an anticlockwise direction.

Hence, the correct answer is "Option 4".

The logic followed here is:

From figure 1 to 2 and figure 3 to 4:

Top-left, top-middle, bottom-middle and bottom-left elements (all 4 elements) are shifting in a clockwise direction.

Top-right, bottom-right and middle element are interchanging their position with each other.

From figure 2 to 3 and figure 4 to 5:

Top-left symbol with bottom-right symbol and top-middle with bottom-middle symbols are interchanging their position.

All 3 diagonal symbols from top-right to bottom-left are shifting in an anticlockwise direction.

Hence, the correct answer is "Option 1".

Given: P, Q, R, S and T are five friends sitting in a straight line facing North.

1. P sits at the extreme right end.

2) R is the immediate neighbour of P.

3. T sits to the immediate left of S but is not at the extreme left end.

So, Q sits at the extreme left end of the row.

Hence, the correct answer is "Q".

The logic followed here is:

‘BEAM’ is written as ‘BAFL’

‘HUGE’ is written as ‘FFIT’.

Similarly, ‘ZERO’ will be written as:

Hence, the correct answer is "FNSY".

The logic followed here is:

Hence, the correct answer is "8".

The paper look when unfolded:

Hence, the correct answer is "Option 3".

The figure that completes the pattern:

Hence, the correct answer is "Option 3".

The paper look when unfolded:

Hence, the correct answer is "Option 4".

The logic followed here is:

Given Sequence: A _ _ PS _ LNP _ A _ N _ S _ LNP _  

Now, putting the letters in the blank spaces given in the option one by one:

Option 1) LNASLPAS → A L N PS / A LNP S / A L N P S / A LNP S

Here, 'A L N PS' is the pattern.

Option 2) LNASLPSA → A L N PS / A LNP S / A L N P S / S LNP A

Option 3) NLASLPAS → A N L PS / A LNP S / A L N P S / A LNP S

Option 4) LNASPLAS → A L N PS / A LNP S / A P N L S / A LNP S

Hence, the correct answer is "LNASLPAS".

The figure that completes the pattern:

Hence, the correct answer is "Option 4".

The logic followed here is:

From figure 1 to 2 and figure 3 to 4:

Top-left, and bottom-right element are interchanging their position.

All 3 horizontal elements are shifting in a clockwise direction.

From figure 2 to 3 and figure 4 to 5:

Left 2(Top left and middle left) and right 2(bottom right and Middle right) symbols are interchanging their position respectively.

Middle symbol is replaced by a new symbol.

Hence, the correct answer is "Option 2".

The correct mirror image of the given figure is:

Hence, the correct answer is "Option 1".

The correct mirror image of the given figure is:

Hence, the correct answer is "Option 1".

The logic followed here is:

HUGE : IJWI

And,

BEAM : QDGC

Similarly,

RIDE : ?

Hence, "Option 2" is the correct answer.

Given:

Cash price = Rs. 39,300

Down payment = Rs. 7,450

Interest rate = 20% per annum (compounded annually)

Calculation:

Amount to be financed = Rs. 39,300 - Rs. 7,450 = Rs. 31,850

Let the amount of each installment be 'a'.

The total amount paid in installments will be the sum of the installments with compound interest.

The formula for compound interest is:

Amount = P(1 + r)ⁿ, where P is the principal, r is the rate of interest, and n is the number of years.

The installment amount 'a' for 3 years with annual compounding is given by:

⇒ 31,850 = a / (1 + 20/100) + a / (1 + 20/100)² + a / (1 + 20/100)³

⇒ 31,850 = a / 1.2 + a / 1.44 + a / 1.728

⇒ 31,850 = a (1 / 1.2 + 1 / 1.44 + 1 / 1.728)

Calculate the sum inside the parentheses:

1 / 1.2 = 0.8333

1 / 1.44 = 0.6944

1 / 1.728 = 0.5787

⇒ 31,850 = a (0.8333 + 0.6944 + 0.5787)

⇒ 31,850 = a (2.1064)

⇒ a = 31,850 / 2.1064

⇒ a = 15,120

Therefore, the amount of each installment is Rs. 15,120.

Given:

Selling price of the item = Rs. 1,500

Loss = 20%

Desired gain = 10%

Formula Used:

Cost Price (CP) = Selling Price / (1 - Loss%)

Selling Price for desired gain = Cost Price × (1 + Gain%)

Calculation:

Loss = 20% = 20/100 = 0.20

Selling Price (SP) = Rs. 1,500

⇒ Cost Price (CP) = 1,500 / (1 - 0.20)

⇒ CP = 1,500 / 0.80

⇒ CP = 1,875

Gain = 10% = 10/100 = 0.10

⇒ Selling Price for 10% gain = 1,875 × (1 + 0.10)

⇒ Selling Price for 10% gain = 1,875 × 1.10

⇒ Selling Price for 10% gain = 2,062.50

Therefore, the amount for which he should sell the item to gain 10% is Rs. 2,062.50.

Given:

Two prime numbers: p and q.

Formula Used:

Average of two numbers = (p + q)/2

Calculation:

We need to find the average of p and q.

Average = (p + q)/2

⇒ Average = (p + q)/2

The average of p and q is (p + q)/2.

Given:

Diameter of the sphere = 10 cm

Formula Used:

Volume of a sphere = (4/3)πr³

Where,

r = radius of the sphere

Calculation:

Radius (r) = Diameter / 2 = 10 cm / 2 = 5 cm

Now, convert the radius into metres: 5 cm = 0.05 m

Volume = (4/3)π(0.05)³

⇒ Volume = (4/3)π(0.000125)

⇒ Volume = (4/3) × π × 1/8000

⇒ Volume = (4/24000)π

⇒ Volume = (1/6000)π m³ = \(\frac{(\pi)}{(6)} × 10^{(-3)}\)

The volume of the sphere is \(\frac{(\pi)}{(6)} × 10^{(-3)}\).

Given:

The price of the article is fixed at 24% above the cost of production.

Discount allowed on the fixed price is 15%.

Profit made is Rs. 27.

Formula Used:

Selling Price (SP) = Fixed Price - Discount

Profit = Selling Price - Cost of Production

Calculation:

Let the cost of production be Rs. x.

Fixed Price = x + 24% of x

Fixed Price = x + 0.24x = 1.24x

Discount = 15% of Fixed Price

Discount = 0.15 × 1.24x = 0.186x

Selling Price = Fixed Price - Discount

Selling Price = 1.24x - 0.186x = 1.054x

Profit = Selling Price - Cost of Production

→ 27 = 1.054x - x

→ 27 = 0.054x

→ x = 27 / 0.054

→ x = 500

The cost of production of the article is Rs. 500.

Given:

Diameter of the hemisphere = 14 cm

Radius of the hemisphere (r) = 14/2 = 7 cm

π = 22/7

Formula Used:

Volume of a hemisphere = (2/3) π r³

Calculation:

Volume of the hemisphere

Volume = (2/3) π r³

π = 22/7

r = 7 cm

→ Volume = (2/3) × (22/7) × 7³

→ Volume = (2/3) × (22/7) × 343

→ Volume = (2/3) × 22 × 49

→ Volume = (2 × 22 × 49)/3

→ Volume = 2156/3

The volume of the hemisphere is 2156/3 cm³.

Given:

The ratio of two numbers is 5∶7 and their difference is 48.

Calculation:

Let the two numbers be 5x and 7x.

The difference between the numbers is given by 7x - 5x = 48.

7x - 5x = 48

→ 2x = 48

→ x = 48 / 2

→ x = 24

The smaller of the two numbers is 5x.

5x = 5 × 24

5x = 120

The smaller of the two numbers is 120.

Given:

A can complete the work in 30 days

B can complete the work in 40 days

They work together for 8 days

Formula used:

Total Work = Time × Efficiency

Calculation:

LCM(30,40) = 120 (Total work units)

Work done per day: A = 120/30 = 4, B = 120/40 = 3

Work done together per day = 4 + 3 = 7

Work done in 8 days = 8 × 7 = 56

Remaining work = 120 - 56 = 64

A alone completes 4 units/day

Days required = 64/4 = 16

∴ A will finish the remaining work in 16 days.

Given:

The number to be expressed as the product of two coprime numbers = 480.

Formula Used:

If two numbers a and b are coprime and their product is n, then any such n can be written as a × b where a and b are coprime.

Calculation:

Prime factorization of 480:

480 = 2⁵ × 3 × 5

To form two coprime numbers, we need to group the prime factors such that each group is coprime with the other. The possible groupings are:

The 4 pairs of coprime factors (a, b) whose product is 480 are:

1. (1, 480), where HCF of {1 and 480} = 1
2. (3, 160), where HCF of {3 and 160} = 1 3. (5, 96), where HCF of {5 and 96} = 1 4. (15, 32), where HCF of {15 and 32} = 1

These are the 4 ways to write 480 as the product of two numbers which are coprime to each other.

The correct answer is option 4.

Given:

Percentage of voters who cast votes = 80%

Percentage of invalid votes = 5%

Votes received by a candidate = 5,700

Votes received = 75% of valid votes

Formula used:

Total valid votes = Total votes cast - Invalid votes

Let total enrolled voters be X.

Total votes cast = \(\dfrac{80}{100} \times X\)

Invalid votes = \(\dfrac{5}{100} \times (\dfrac{80}{100} \times X)\)

Valid votes = Total votes cast - Invalid votes

A candidate’s votes = 75% of valid votes

Calculation:

Total votes cast:

⇒ \(\dfrac{80}{100} \times X = 0.8X \)

Invalid votes:

⇒ \(\dfrac{5}{100} \times 0.8X = 0.04X\)

Valid votes:

⇒ \(0.8X - 0.04X = 0.76X\)

Given that 75% of valid votes = 5,700:

⇒ \( \dfrac{75}{100} \times 0.76X = 5700 \)

⇒ \(0.57X = 5700\)

⇒ \(X = \dfrac{5700}{0.57}\)

⇒ X = 10,000

∴ The total number of voters enrolled in the election is 10,000.

Shortcut Trick

Relative speed (opposite direction) = 99 + 81 = 180 km/h

Relative speed in m/s = 180 × 5/18 = 50 m/s

Total distance (sum of lengths) = Speed × Time = 50 × 9 = 450 m

Length of second train = Total distance − First train length

Length of second train = 450 − 220 = 230 m

∴ The correct answer is 230.

Alternate Method

Given:

Length of first train (L₁) = 220 m

Speed of first train (S₁) = 99 km/h

Speed of second train (S₂) = 81 km/h

Time taken to cross each other (T) = 9 seconds

Formula Used:

Relative Speed (Opposite Direction) = S₁ + S₂

Total Distance = Length of Train 1 + Length of Train 2

Distance = Speed × Time

220 m Train 1

99 km/h

L₂ Train 2

81 km/h

Opposite Direction (Relative Speed = S₁ + S₂)

Calculations:

⇒ Relative speed = 99 + 81 = 180 km/h

⇒ Speed in m/s = 180 × (5/18) = 50 m/s

⇒ Total distance = (L₁ + L₂)

⇒ L₁ + L₂ = Relative Speed × Time

⇒ 220 + L₂ = 50 × 9

⇒ 220 + L₂ = 450

⇒ L₂ = 450 − 220

⇒ L₂ = 230 m

∴ The correct answer is 230.

Additional Information

Relative Speed in Same Direction

When two objects move in the same direction, relative speed is the difference of their speeds: |S₁ − S₂|.

Unit Conversion Shortcut

To convert km/h to m/s, multiply by 5/18. To convert m/s to km/h, multiply by 18/5.

Train Crossing an Object with Length

When a train crosses another train or a platform, the total distance covered is the sum of their lengths: L_Total = L_Train + L_Object.

Train Crossing a Point Object

When a train crosses a pole or a stationary man, the distance covered is equal to the length of the train itself.

Given:

First month investment: Rs. 65,000

Rebate: 8%

Tax rate: 10%

Second month investment: Rs. 70,000

Rebate: 10%

Tax rate: 12%

Formula Used:

Net investment = (Initial investment - Rebate) + Tax

Percentage change = ((Second month investment - First month investment))/(First month investment) × 100

Calculation:

First month:

Rebate = 65,000 × 8% = 65,000 × 0.08 = 5,200

Net price after rebate = 65,000 - 5,200 = 59,800

Tax = 59,800 × 10% = 59,800 × 0.10 = 5,980

Net investment = 59,800 + 5,980 = 65,780

Second month:

Rebate = 70,000 × 10% = 70,000 × 0.10 = 7,000

Net price after rebate = 70,000 - 7,000 = 63,000

Tax = 63,000 × 12% = 63,000 × 0.12 = 7,560

Net investment = 63,000 + 7,560 = 70,560

Percentage change:

Change in investment = 70,560 - 65,780 = 4,780

Percentage change = (4,780)/(65,780) × 100

Percentage change ≈ 7.27%

∴ The percentage change in his investment from the first month to the second month is an increase between 7 and 8%.

Given:

Time (t) = 7 years

Final Amount (A) = 2 × Principal (P)

Formula used:

Simple Interest formula:

A = P + SI

SI = \(\dfrac{P × R × T}{100}\)

Calculation:

2P = P + \(\dfrac{P × R × 7}{100} \)

⇒ 2P - P = \(\dfrac{P × R × 7}{100}\)

⇒ P = \(\dfrac{P × R × 7}{100}\)

⇒ \(R = \dfrac{100}{7} \)

⇒ R = 14\(\frac{2}{7}\)%

∴ The required rate is 14\(\frac{2}{7}\)% per annum.

Given:

Ratio of numbers = 4 ∶ 5 ∶ 6

LCM = 180

Formula used:

Let the numbers be 4x, 5x, and 6x.

LCM of 4x, 5x, and 6x = LCM(4, 5, 6) × x

HCF = x

Calculation:

LCM(4,5,6) = 60

⇒ 60 × x = 180

⇒ x = 180 ÷ 60

⇒ x = 3

∴ HCF = 3

Given:

Numbers: 204, 507, 174

Formula Used:

To find the HCF of given numbers

Calculation:

Step 1: Find the prime factorization of each number.

204 = 2² × 3 × 17

507 = 3 × 13 × 13

174 = 2 × 3 × 29

Step 2: Identify the common factors.

The common factor is 3.

∴ HCF = 3

The HCF of 204, 507, and 174 is 3.