RRB NTPC CBT-I Official Paper (Held On: 24 July 2021 Shift 2) (Previous Year Paper)

The correct answer is Nellore.

Key Points

• Sriharikota is a barrier island located in the Nellore district of Andhra Pradesh, India.
• It houses the Satish Dhawan Space Centre (SDSC), which is the primary launch center for the Indian Space Research Organisation (ISRO).
• The island is situated in the Bay of Bengal, off the eastern coast of Andhra Pradesh.
• Sriharikota has been the site for numerous significant space missions, including the Chandrayaan-2 mission.

Additional Information

• Chandrayaan-2
• Chandrayaan-2 is India's second lunar exploration mission developed by the Indian Space Research Organisation (ISRO).
• The mission aims to explore the south polar region of the Moon, which is less explored and could provide valuable scientific data.
• Launched on 22 July 2019 from the Satish Dhawan Space Centre in Sriharikota, the mission included an orbiter, a lander named Vikram, and a rover named Pragyan.
• While the orbiter continues to study the Moon from its orbit, the lander unfortunately crash-landed during its descent.
• Satish Dhawan Space Centre (SDSC)
• Named after one of the founding figures of the Indian space program, Satish Dhawan, the SDSC is the primary launch center for ISRO's satellite missions.
• Established in 1971, SDSC is equipped with multiple launch pads and facilities for vehicle assembly, integration, and testing.
• The center has been pivotal in launching numerous significant missions, including the Mars Orbiter Mission (Mangalyaan) and the GSAT series of communication satellites.
• SDSC also conducts various other activities such as testing, tracking, and telemetry operations related to space missions.

The correct answer is milk.

Key Points

• Casein is a family of related phosphoproteins that are commonly found in mammalian milk, making up about 80% of the proteins in cow's milk and between 20% to 45% of the proteins in human milk.
• Casein is a major component of cheese and is also used in the food industry as a binding agent, emulsifier, and thickening agent.
• It has a slow digestion rate, which makes it a popular choice for those looking for a sustained release of amino acids in the body, especially during periods of fasting or overnight.
• Casein is rich in essential amino acids and calcium, which is beneficial for bone health and muscle repair.

Additional Information

• Proteins:
• Proteins are large biomolecules consisting of one or more long chains of amino acid residues. They perform a vast array of functions within organisms, including catalyzing metabolic reactions, DNA replication, responding to stimuli, providing structure to cells, and organisms, and transporting molecules from one location to another.
• Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in protein folding into a specific 3D structure that determines its activity.
• Milk:
• Milk is a nutrient-rich liquid food produced by the mammary glands of mammals. It is the primary source of nutrition for young mammals before they are able to digest other types of food.
• In addition to casein, milk contains other proteins such as whey protein, lactose (a type of sugar), and various vitamins and minerals, including calcium, vitamin D, and potassium.
• Cheese:
• Cheese is a dairy product derived from milk that is produced in a wide range of flavors, textures, and forms by coagulation of the milk protein casein.
• It comprises proteins and fat from milk, usually the milk of cows, buffalo, goats, or sheep.
• Cheese is valued for its portability, long shelf life, and high content of fat, protein, calcium, and phosphorus.
• Emulsifier:
• An emulsifier is a substance that stabilizes an emulsion, which is a mixture of two or more liquids that are normally immiscible (unblendable).
• In the food industry, emulsifiers are used to improve the texture, consistency, and shelf life of processed foods.

The correct answer is Melanin.

Key Points

• Melanin is the pigment primarily responsible for the color of human skin, hair, and eyes.
• Melanin is produced by cells known as melanocytes in a process called melanogenesis.
• The amount and type of melanin produced by melanocytes determines the wide range of human skin, hair, and eye colors.
• Melanin has the ability to absorb harmful UV radiation from the sun, providing some protection against UV-induced DNA damage.

Additional Information

• Xanthophyll
• Xanthophylls are yellow pigments that belong to the carotenoid group.
• They are found in the leaves of most green plants and play a role in photosynthesis by protecting the plant from the harmful effects of light.
• Myoglobin
• Myoglobin is an iron- and oxygen-binding protein found in the muscle tissue of vertebrates.
• It helps in storing oxygen in muscle cells, which is essential for muscular activity.
• Chlorophyll
• Chlorophyll is the green pigment found in the chloroplasts of plants, algae, and cyanobacteria.
• It is crucial for photosynthesis, as it helps in the absorption of light energy to convert carbon dioxide and water into glucose and oxygen.

The correct answer is Flamingos.

Key Points

• Chilika Lake, located in the state of Odisha in India, is the largest coastal lagoon in India and the second largest lagoon in the world.
• It is a significant habitat for a variety of migratory birds, especially during the winter season, with Flamingos being one of the most notable species.
• Chilika Lake is recognized as one of the most important wetlands in the world because it hosts over 160 species of birds in the peak migratory season.
• Flamingos flock to Chilika Lake from far-off places like the Caspian Sea, Lake Baikal, the Aral Sea, and other remote parts of Russia, Kirghiz steppes of Mongolia, Central and Southeast Asia, Ladakh, and the Himalayas.

Additional Information

• Rhinoceros:
• Rhinoceros are large, herbivorous mammals known for their horned snouts.
• They are found in parts of Africa and Asia, not in Chilika Lake.
• The Indian Rhinoceros is primarily found in the grasslands of Assam and West Bengal.
• Musk Deer:
• Musk deer are small, shy, and solitary animals found in mountainous regions of Asia, particularly in the Himalayas.
• They are known for the musk gland that the males possess.
• Penguins:
• Penguins are flightless birds that primarily inhabit the Southern Hemisphere, especially Antarctica.
• They are not found in Chilika Lake or any other part of India.
• Flamingos:
• Flamingos are large wading birds known for their pink feathers, long necks, and stick-like legs.
• They thrive in saline or alkaline lakes and are prominent visitors to Chilika Lake, making it a crucial spot for their migratory pattern.

The correct answer is Calcutta.

Key Points

• Raja Rammohan Roy founded the Brahmo Sabha in Calcutta in 1828, which was later renamed Brahmo Samaj.
• The Brahmo Samaj played a key role in the social and religious reform movement in India during the 19th century.
• It aimed at reforming the practice of Hinduism and eradicating social evils like Sati, child marriage, and caste discrimination.
• Raja Rammohan Roy is often referred to as the "Father of the Indian Renaissance" for his efforts in modernizing Indian society.

Additional Information

• Brahmo Samaj:
• The Brahmo Samaj was one of the most influential religious movements in India, advocating for monotheism and rejecting idol worship.
• It sought to bring about a social and religious reformation by emphasizing rationality and ethics in religious practices.
• Leaders like Debendranath Tagore and Keshab Chandra Sen furthered the movement after Raja Rammohan Roy's death.
• Raja Rammohan Roy:
• Born on May 22, 1772, in Radhanagar, Bengal, Raja Rammohan Roy was a prominent social and religious reformer.
• He was instrumental in the abolition of the Sati practice through his relentless efforts and petitions to the British government.
• In addition to founding the Brahmo Samaj, he also established the Hindu College in Calcutta in 1817, which later became the Presidency College.
• His contributions extended beyond social reform to areas such as education, women's rights, and the promotion of a free press.
• Social Reforms:
• The Brahmo Samaj was pivotal in advocating for women's rights, including the education of women and the abolition of practices like child marriage and polygamy.
• It promoted the idea of a casteless and classless society, focusing on the unity and equality of all human beings.
• Legacy:
• The Brahmo Samaj's impact was profound, influencing other social and religious reform movements across India, including the Arya Samaj and the Ramakrishna Mission.
• Its progressive ideals contributed significantly to the shaping of modern Indian society and the Indian independence movement.

The diagram that best represents the relationship between Canvas, and Paint, Brush is shown below :

Canvas, Paint, and Brush are three different items used for painting.

Hence, "Option 1" is the correct answer.

Additional InformationA canvas is a surface for painting.

Paint is the medium used to create the artwork.

a brush is the tool used to apply the paint.

The correct answer is Creating innovative business models to increase the wealth of its member countries.

Key Points

• The International Monetary Fund (IMF) was established to promote international monetary cooperation.
• It provides policy advice and financing to members in economic difficulties.
• It works to reduce poverty around the world.
• It helps to stabilize exchange rates and provide a stable monetary system.

Additional Information

• International Monetary Fund (IMF)
• The IMF is an organization of 190 countries, working to foster global monetary cooperation, secure financial stability, facilitate international trade, promote high employment and sustainable economic growth, and reduce poverty around the world.
• It was conceived in July 1944 during the United Nations Monetary and Financial Conference in Bretton Woods, New Hampshire, United States, and formally came into existence on December 27, 1945.
• The IMF's primary purpose is to ensure the stability of the international monetary system—the system of exchange rates and international payments that enables countries (and their citizens) to transact with each other.
• Functions of the IMF
• Surveillance: The IMF oversees the international monetary system and monitors the economic and financial policies of its 190 member countries. This activity is known as surveillance and facilitates international cooperation.
• Financial Assistance: The IMF provides financial assistance to member countries facing balance of payments problems. This assistance is provided under various IMF lending programs, such as Stand-By Arrangements, Extended Fund Facility, and others.
• Capacity Development: The IMF offers technical assistance and training to help member countries build better economic institutions and strengthen their capacity to design and implement effective policies.

The correct answer is World Food Safety Day.

Key Points

• The United Nations declared 7th June as World Food Safety Day to raise awareness about the importance of food safety.
• Food safety is a critical issue as it impacts human health, food security, and the economy.
• The first World Food Safety Day was celebrated on June 7, 2019.
• The day aims to draw attention to and inspire actions to help prevent, detect, and manage foodborne risks, contributing to food security, human health, economic prosperity, agriculture, market access, tourism, and sustainable development.

Additional Information

• Food Safety
• Food safety refers to the handling, preparation, and storage of food in ways that prevent foodborne illness.
• It includes various routines that should be followed to avoid potentially severe health hazards.
• Food can transmit diseases from one person to another as well as serve as a growth medium for bacteria that can cause food poisoning.
• Food safety practices are critical for maintaining the quality and safety of food throughout the entire food chain.
• United Nations
• The United Nations (UN) is an international organization founded in 1945 after the Second World War by 51 countries committed to maintaining international peace and security.
• It works to foster friendly relations among nations, promote social progress, better living standards, and human rights.
• The UN has numerous specialized agencies that work on various aspects of international development, including health, agriculture, and education.
• The UN plays a pivotal role in global governance, addressing issues that transcend national boundaries.
• World Health Organization (WHO)
• The WHO is a specialized agency of the United Nations responsible for international public health.
• It was established on 7 April 1948, headquartered in Geneva, Switzerland.
• The WHO's primary role is to direct and coordinate international health within the United Nations system.
• The WHO works with 194 Member States, across six regions, and from more than 150 offices to achieve better health for everyone, everywhere.

The correct answer is Thomas Babington Macaulay.

Key Points

• Thomas Babington Macaulay was instrumental in the introduction of English education in India through his famous "Minute on Indian Education" in 1835.
• He argued that promoting English literature and science would lead to the creation of a class of anglicized Indians who would serve as cultural intermediaries between the British and the Indians.
• Macaulay's policies led to the establishment of English as the medium of instruction in Indian education.
• His efforts laid the foundation for the modern education system in India, emphasizing Western curriculum and pedagogy.

Additional Information

• James Mill
• James Mill was a Scottish historian, economist, and philosopher, known for his work "The History of British India".
• He was critical of Indian culture and was an advocate for British rule in India.
• Charles Wood
• Charles Wood was the President of the Board of Control of the British East India Company.
• He is known for the Wood's Dispatch of 1854, which laid the foundation for the establishment of a systematic and structured educational system in India.
• The Dispatch recommended the establishment of universities in Calcutta, Bombay, and Madras.
• William Carey
• William Carey was a Christian missionary and a key figure in the spread of Western education in India.
• He founded the Serampore College and was instrumental in the translation of the Bible into several Indian languages.

Given:

Find the HCF of the first 100 natural numbers.

Formula used:

HCF of any set of numbers is the highest number that divides all of them exactly.

Calculation:

The first 100 natural numbers are 1, 2, 3, ..., 100.

The only number that can divide all natural numbers is 1.

⇒ HCF = 1

∴ The correct answer is option (4).

Given:

19% of 16% of 1480

Formula used:

a% of b% of c = (a/100) × (b/100) × c

Calculation:

19% of 16% of 1480

⇒ (19/100) × (16/100) × 1480

⇒ 0.19 × 0.16 × 1480

⇒ 0.0304 × 1480

⇒ 45.0

Now, calculating for the options:

Option 1: 48% of 6% of 1480

⇒ (48/100) × (6/100) × 1480

⇒ 0.48 × 0.06 × 1480

⇒ 0.0288 × 1480

⇒ 42.6

Option 2: 35% of 1% of 1480

⇒ (35/100) × (1/100) × 1480

⇒ 0.35 × 0.01 × 1480

⇒ 0.0035 × 1480

⇒ 5.18

Option 3: 38% of 8% of 1480

⇒ (38/100) × (8/100) × 1480

⇒ 0.38 × 0.08 × 1480

⇒ 0.0304 × 1480

⇒ 45.0

Option 4: 9% of 26% of 1480

⇒ (9/100) × (26/100) × 1480

⇒ 0.09 × 0.26 × 1480

⇒ 0.0234 × 1480

⇒ 34.63

∴ The correct answer is option 3.

The logic followed here is:

Option 1) 53, 225

(5 × 3)² = 225

(15)2 = 225

225 = 225 (LHS = RHS)

Option 2) 29, 324

(2 × 9)2 = 324

(18)2 = 324

324 = 324 (LHS = RHS)

Option 3) 23, 216

(2 × 3)2 = 216

(6)2 = 216

36 ≠ 216 (LHS ≠ RHS)

Option 4) 37, 441

(3 × 7)2 = 441

(21)2 = 441

441 = 441 (LHS = RHS)

Thus, out of all the options, '23, 216' is the correct answer.

Hence, "Option 3" is the correct answer.

The logic followed here is:

​​POSITIVE is written as KQHKGKEG

Similarly,

NATIONAL is written as

Hence, "Option 1" is the correct answer.

The correct answer is Rhizobium.

Key Points

• Rhizobium is a genus of soil bacteria that forms symbiotic relationships with leguminous plants by fixing nitrogen from the atmosphere.
• These bacteria are found in the root nodules of legume plants where they convert atmospheric nitrogen into ammonia, which the plant can use for growth.
• The relationship between Rhizobium and leguminous plants is mutually beneficial; the plant provides carbohydrates to the bacteria, while the bacteria provide the plant with a usable form of nitrogen.
• Rhizobium species are critical for sustainable agriculture as they reduce the need for chemical fertilizers by naturally enriching soil nitrogen levels.

Additional Information

• Clostridium
• Clostridium is a genus of Gram-positive bacteria, which are obligate anaerobes and can produce endospores.
• They are commonly found in soil, water, and the gastrointestinal tract of humans and animals.
• Some species of Clostridium are pathogenic and can cause diseases such as botulism, tetanus, and gas gangrene.
• Escherichia
• Escherichia is a genus of Gram-negative bacteria, of which Escherichia coli (E. coli) is the most well-known species.
• While many strains of E. coli are harmless and part of the normal gut flora, some can cause serious food poisoning and infections.
• E. coli is often used as an indicator organism to assess the sanitary quality of food and water.
• Salmonella
• Salmonella is a genus of Gram-negative bacteria that are pathogenic and can cause foodborne illnesses.
• Infection with Salmonella bacteria can lead to symptoms such as diarrhea, fever, and abdominal cramps, commonly known as salmonellosis.
• Salmonella is typically transmitted through contaminated food or water.

The correct answer is Kolkata.

Key Points

• Kalighat paintings originated in the vicinity of the Kalighat Kali Temple in Kolkata, West Bengal.
• These paintings were created by the local scroll painters and potters, known as 'patuas' and 'kumars'.
• Kalighat paintings are known for their bold outlines, vibrant colors, and simple yet expressive characters.
• The themes of these paintings often revolve around Hindu gods and goddesses, mythological stories, and contemporary social issues.

Additional Information

• Kalighat Kali Temple
• The Kalighat Kali Temple is one of the most famous Hindu temples dedicated to Goddess Kali, located in Kolkata, West Bengal.
• It is considered one of the 51 Shakti Peethas of India and is highly revered by devotees.
• The temple has a rich history and is a significant cultural landmark in Kolkata.
• Patuas
• Patuas are traditional scroll painters and storytellers from Bengal and Odisha regions.
• They paint narrative scrolls, known as 'Patachitra', and travel from village to village, singing and narrating the stories depicted in their scrolls.
• The tradition of Patachitra dates back to ancient times and is an important part of the folk art and culture of the region.
• Kolkata - Cultural Hub
• Kolkata, the capital city of West Bengal, is known as the cultural capital of India due to its rich history, literature, art, and heritage.
• The city has produced numerous poets, writers, film directors, and artists who have significantly contributed to Indian culture.
• Kolkata is home to several prestigious cultural institutions, including the Indian Museum, Victoria Memorial, and Rabindra Bharati University.

Given: Five teachers, U, V, W, X and Y, are sitting in a row facing towards the north.

1) Y is to the extreme left.

2) U is the left of V and right of W.

3) V is to the left of X.

After positioning Jake only position is left which will be occupied by the only person left i.e. Cole.

Thus, according to the final arrangement, U is sitting in the middle.

Hence, "Option 1" is the correct answer.

The correct answer is Sushant Singh Rajput.

Key Points

• Sushant Singh Rajput did not receive the 'Best Actor' or 'Best Actress' award at the 67th National Film Awards Ceremony.
• The 'Best Actor' award was shared between Dhanush for the Tamil movie 'Asuran' and Manoj Bajpayee for the Hindi movie 'Bhonsle'.
• Kangana Ranaut received the 'Best Actress' award for her performances in 'Manikarnika: The Queen of Jhansi' and 'Panga'.
• The 67th National Film Awards recognized films from the year 2019 and were announced on 22nd March 2021.

Additional Information

• National Film Awards
• The National Film Awards is the most prominent film award ceremony in India, established in 1954.
• It is administered by the Directorate of Film Festivals, an organization set up by the Ministry of Information and Broadcasting.
• The awards aim to encourage the production of films of aesthetic and technical excellence and social relevance, contributing to the understanding and appreciation of cultures of different regions of the country in cinematic form.
• The awards are presented in various categories including feature films, non-feature films, and books written on Indian cinema.
• 67th National Film Awards
• The awards honoring the best films of 2019, were announced on 22nd March 2021 due to the COVID-19 pandemic.
• Dhanush and Manoj Bajpayee won the 'Best Actor' award for 'Asuran' and 'Bhonsle', respectively.
• Kangana Ranaut received the 'Best Actress' award for her roles in 'Manikarnika: The Queen of Jhansi' and 'Panga'.
• The awards ceremony was delayed and held in 2021 to accommodate the schedule disrupted by the pandemic.
• Sushant Singh Rajput
• Sushant Singh Rajput was an Indian actor known for his work in Hindi cinema.
• He made his film debut in the movie 'Kai Po Che!' in 2013.
• He gained widespread acclaim and popularity for his portrayal of Indian cricketer Mahendra Singh Dhoni in the biopic 'M.S. Dhoni: The Untold Story'.
• Despite his successful career, he did not receive the 'Best Actor' award at the 67th National Film Awards.

Given:

The following table gives a frequency distribution whose arithmetic mean is 33. Find the product of the possible values of k from the distribution.

Mean = 33

Formula used:

Arithmetic Mean = $\dfrac{\sum (f_i \cdot x_i)}{\sum f_i}$

Calculations:

33 = $\dfrac{(29 \cdot 4) + (30 \cdot 3) + ((30 + k) \cdot 3k) + (34 \cdot 2) + (62 \cdot 1)}{4 + 3 + 3k + 2 + 1}$

⇒ 33 = $\dfrac{116 + 90 + (90k + 3k^2) + 68 + 62}{10 + 3k}$

⇒ 33 = $\dfrac{336 + 90k + 3k^2}{10 + 3k}$

⇒ 33(10 + 3k) = 336 + 90k + 3k^2

⇒ 330 + 99k = 336 + 90k + 3k^2

⇒ 3k^2 - 9k + 6 = 0

⇒ k^2 - 3k + 2 = 0

⇒ (k - 1)(k - 2) = 0

⇒ k = 1 or k = 2

Therefore, the product of possible values of k is:

1 × 2 = 2

∴ The correct answer is option (1).

Given: Kamini, Madhuri, Gunjan, Anita, Sunita and Rakhi are friends. 

1) Madhuri is the oldest among them all.

Madhuri > _ > _ > _ > _ > _

2) Sunita is younger than Kamini but older than Rakhi. 

3) Gunjan is older than Kamini.

Gunjan > Kamini > Sunita > Rakhi

3) Anita is a few months younger than Kamini but a few years older than Sunita.

Madhuri > Gunjan > Kamini > Anita > Sunita > Rakhi

Thus, according to the final arrangement, Kamini is the third oldest among them all.

Hence, "Option 3" is the correct answer.

Given:

DE is tangent to the circle at point B.

ABC is an isosceles triangle with AB = AC.

∠ABD = 65°

Formula used:

Tangent-Chord Angle Theorem: ∠ABD = ½ arc AB

Calculations:

arc AB = 2 × ∠ABD = 2 × 65° = 130°

In triangle AABC, AB = AC → ∠ABC = ∠ACB

Sum of angles in triangle: ∠ABC + ∠ACB + ∠BAC = 180°

Since ∠ABC = ∠ACB, 2 × ∠ABC + ∠BAC = 180°

∠ABC = ½ × arc AB = 65°

2 × 65° + ∠BAC = 180° ⇒ ∠BAC = 180° - 130° = 50°

Answer:

∠BAC = 50°.

Given:

A certain number of men can complete a task in 50 days.

If there are 5 men more, then it can be finished in 10 days less.

Formula used:

Let the number of men be M.

Work = Men × Days

Calculation:

Original work: M × 50

New work: (M + 5) × 40

Since the work is the same:

M × 50 = (M + 5) × 40

⇒ 50M = 40(M + 5)

⇒ 50M = 40M + 200

⇒ 50M - 40M = 200

⇒ 10M = 200

⇒ M = 20

∴ The correct answer is option 2.

The correct answer is Vivek Murthy

Key Points

• Vivek Murthy, a doctor of Indian origin, was appointed as the 21st Surgeon General of the United States by President Joe Biden in 2021Dr
• Vivek Murthy is a physician, public health advocate, and author of Indian origin.
• He was first appointed as the 19th Surgeon General of the United States by President Barack Obama in 2014 and later reappointed as the 21st Surgeon General by President Joe Biden in 2021.
• This made him one of the few individuals to serve multiple terms in this role.

Additional Information

• Joe Biden of the Democratic Party defeated Donald Trump of the Republican Party to become the 46th President of the United States.
• Mr. Biden’s running mate, Kamala Devi Harris, a U.S. Senator from California, will become the first woman and first Indian- and African-American Vice-President of the country.
• Mr. Biden, 77 (when elected) is the oldest candidate ever elected as the President of the USA. Recently on 20 November, he turned 78.

Important Points

• Basic Information about the USA:
• Number of States in the USA: Fifty
• Capital: Washington DC
• Bounded by: on the north by Canada, on the east by the Atlantic Ocean, on the south by the Gulf of Mexico and Mexico, and on the west by the Pacific Ocean.
• Place in the world: In terms of Area, 4th largest country after Russia, Canada, and China.
• Place in the world: In terms of GDP, the United States with a GDP worth USD 21.44 trillion is the largest economy followed by China (USD 14.41 trillion), Japan (USD 5.15 trillion), Germany (USD 3.16 trillion), and India (USD 2.94 trillion).

The correct answer is Bhagat Singh.

Key Points

• The Naujawan Bharat Sabha was founded by Bhagat Singh in 1926.
• It was a left-wing organization which sought independence by gathering together worker and peasant youths.
• It was part of the Hindustan Republican Association.
• The British government banned it in 1929.
• The members were responsible for killing J.P. Saunders and in the Meerut conspiracy, where the organization's members tried to create strikes among railway workers.
• The group later merged with the All India Youth League.

Additional Information

• Vinayak Damodar Savarkar
• ​He was a prominent member of the Hindu Mahasabha.
• Savarkar joined the Hindu Mahasabha and popularized Chandranath Basu's word Hindutva to build a collective Hindu identity as an essence of Bharat.
• Savarkar was an atheist who practised Hindu philosophy pragmatically.
• In 1904, Vinayak Damodar Savarkar and his brother Ganesh Damodar Savarkar created the Abhinav Bharat Organization (Young India Society).
• It is an Indian Independence secret society.
• It was founded as Mitra Mela in Nasik when he was a student at Fergusson College in Pune.
• It was the group developed to encompass several hundred revolutionaries and political activists with branches in many regions of India.
• The Savarkar brothers were convicted and imprisoned after they carried out a few assassinations of British officials.
• In 1952, the society was formally abolished.
• Dadabhai Naoroji 
• Dadabhai Naoroji was a businessman and a great publicist who settled in London.
• He was the first Asian to become a British Member of Parliament when he was elected to the House of Commons in 1892.
• He formed the London India Society in 1865 to put forth views on Indian political, social and literary subjects.
• He also founded the East India Association in 1867 with the purpose of putting across Indian viewpoints across to the British public.
• He was the President of the Congress Party in 1886, 1893 and 1906.
• Naoroji’s book Poverty and Un-British Rule in India offered scathing criticism of the economic impact of British rule.
• Ashfaqulla Khan ​
• Ashfaqullah Khan was detained in Faizabad Jail after being caught in the Kakori conspiracy case.
• The Kakori Conspiracy Case took place on 9th August 1925.
• It is an armed robbery of a train in Uttar Pradesh's Kakori traveling from Shahjahanpur to Lucknow.
• The motive of the robbery was to gain funds from the government by the Hindustan Republican Association for the Independence Struggle.
• 40 people were arrested for the case across India for involvement in the Kakori Conspiracy.
• The trial for the case went on for 1.5 years and ended in April 1927.
• As many as 15 people were released due to a lack of evidence.

The correct answer is Jyotirao Phule.

Key Points

• Gulamgiri is a masterpiece in itself.
• It is regarded as the very first book that talked about the caste system and how certain castes were exploited during that time.
• It was written in 1873.
• It was written in the form of a dialogue.
• The book is written in the form of a dialogue between Jyotiba and a character called Dhondiba.
• Jyotiba dedicated his book to the American slaves.
• The black Americans were treated as slaves and were highly discriminated against because of their dark complexion.
• He linked the condition of the blacks with the condition of the lower castes in India.​

​Thus, Jyotirao Phule was the writer of the book 'Gulamgiri'.

Additional Information

• ​Jyotirao Phule ​​
• Jyotirao Phule was a social activist and a social reformer.
• He was born in 1827.
• He was the first writer to write against the caste system.
• He tried his best to remove prejudice and untouchability from the caste system.
• He tried to bring out the injustices done to the lower castes and how they were treated as slaves just because they belonged to a lower caste.

Given:

A rhombus has one diagonal double the other.

Area of the rhombus = K cm²

Formula used:

Area of rhombus = (1/2) × d₁ × d₂

Where, d₁ and d₂ are the diagonals.

Side of the rhombus (s) = √((d₁/2)² + (d₂/2)²)

Calculations:

Given d₂ = 2d₁

K = (1/2) × d₁ × 2d₁

⇒ K = d₁²

⇒ d₁ = √K

d₂ = 2√K

Side of rhombus (s) = √((√K/2)² + (2√K/2)²)

⇒ s = √(K/4 + K)

⇒ s = √(5K/4)

∴ The correct answer is option (4).

Given:

The difference between a 12.5% profit and a 10.5% loss = ₹161

Formula used:

Let Cost Price (CP) = ₹x

Selling Price (SP) at 12.5% profit = x + 12.5% of x = x + 0.125x = 1.125x

Selling Price (SP) at 10.5% loss = x - 10.5% of x = x - 0.105x = 0.895x

Difference in Selling Prices = 1.125x - 0.895x = 0.23x

Calculation:

0.23x = ₹161

⇒ x = ₹1610.231610.231610.231610.231610.231610.23

⇒ x = ₹700

Selling Price (SP) at 19% profit = x + 19% of x = x + 0.19x = 1.19x

⇒ SP = 1.19 × 700

⇒ SP = ₹833

∴ The correct answer is option (4).

The correct answer is Projector 

Key Points

• A projector is not an input device, but a barcode reader, scanner, and mouse are all input devices
• Projector is an output device that displays images on a screen using light
• A white screen or wall It can be used as a monitor or television replacement for showing videos and images to a large audience.
• There are Different Types of projector:
• DLP Projector
• LCD Projector
• LED Projector
• CRT Projector

Additional Information

• Difference between Input and Output Device

The logic followed here is:

A = 1, B = 3, C = 5

Similarly,

HEAD is coded as

Hence, "Option 4" is the correct answer.

The logic followed here is:

Hence, "Option 4" is the correct answer.

Given:

A train takes 15 s to pass completely through a station platform 50 m long and 10 s through another station platform 20 m long.

Formula used:

Let the length of the train be L meters and its speed be V m/s.

Using the formula: Distance = Speed × Time

For the first platform: L + 50 = V × 15

For the second platform: L + 20 = V × 10

Calculation:

From the first equation: L + 50 = 15V

⇒ L = 15V - 50

From the second equation: L + 20 = 10V

⇒ L = 10V - 20

Equating both expressions for L:

15V - 50 = 10V - 20

⇒ 15V - 10V = 50 - 20

⇒ 5V = 30

⇒ V = 6 m/s

Substituting V back into L = 15V - 50:

L = 15 × 6 - 50

⇒ L = 90 - 50

⇒ L = 40 m

∴ The correct answer is option (1).

The least possible Venn diagram for the given statements is as shown below :

Conclusions:

I. All girls are students → Does not follow (As all students are girls. So it is possible but not definite.)

II. No boy is a student → Follow (As all students are girls and no girl is a boy. As whole students comes in girls which cannot be boy, therefore it is true.)

∴ Here, Only conclusion II follows.​

Hence, the correct answer is "Option 4".

Given:

Speed of the train = 60 km/h

Time taken to cross the pole = 33 seconds

Formula used:

Distance = Speed × Time

Calculations:

1. Convert speed from km/h to m/s:

60 km/h = 60 × 1000 ÷ 3600 = 16.6667 m/s

2. Calculate the length of the train:

Distance = 16.6667 m/s × 33 s = 550 m

Answer:

The length of the train is 550 meters.

The logic followed here is:

HSJQ : JQLO

Similarly,

CXEV : ?

Hence, "Option 3" is the correct answer.

The correct answer is Mouse

Key Points

• The mouse is not an output device, but an input device.
• A mouse receives input from the user and sends it to the computer, which the user sees as the cursor moves on the screen.
• It allows users to point, click, drag, and scroll on the computer screen.
• It translates physical movement into digital signals that the computer can interpret.

Additional Information

• Difference between Input and Output Device

The correct answer is 1757.

Key Points 

• The Battle of Plassey is regarded as a historic turning point for the British in India.
• It established the political and military supremacy of the British in Bengal.
• Battle of Plassey
• The Battle of Plassey was fought in 1757 in the Plassey (or Palashi) region of West Bengal, on the east of the Bhagirathi river.
• British East India Company, led by Robert Clive, won against the forces of Siraj-ud-Daulah, the last independent Nawab of Bengal, and his French allies.
• In the aftermath, Mir Jafar was installed as the Nawab of Bengal, on the throne of Murshidabad.

Additional Information 

• Reasons behind the Battle of Plassey
• The British victory in the Carnatic made the Nawab of Bengal apprehensive of the rising power of the British.
• The East India Company kept misusing its power, including fortifying Calcutta without the Nawab’s permission.
• The Nawab marched to Fort Williams and captured it, leading to the infamous ‘Black Hole of Calcutta’ incident.
• Robert Clive was sent to overthrow the Nawab leading to the battle.

Given:

Number = 2750

Formula used:

We need to find the smallest positive integer 'x' such that (2750 - x) is a perfect cube.

Calculations:

Let's check the perfect cubes around 2750:

14³ = 2744

15³ = 3375

Since 2750 is between 2744 and 3375, and we need the least positive integer to subtract:

⇒ 2750 - 2744 = 6

∴ The correct answer is option (2).

The correct answer is Justice Ramana

Key Points

• In March 2021, Chief Justice of India S.A. Bobde recommended Justice N.V. Ramana as his successor.
• President Kovind approved the recommendation, and Justice N.V. Ramana was appointed as the 48th Chief Justice of India.
• He assumed office on April 24, 2021, and served until his retirement on August 26, 2022.
• He Served as a judge in the Andhra Pradesh High Court and Chief Justice of the Delhi High Court before his elevation to the Supreme Court in 2014.
• S.A. Bobde, the 47th Chief Justice of India, was due to retire on April 23, 2021.
• As per tradition, the outgoing Chief Justice of India (CJI) recommends the name of the senior-most judge of the Supreme Court as their successor.

Additional Information

• Justice Rohinton Fali Nariman
• Justice Nariman was known for his deep understanding of constitutional law, commercial law, and intellectual property law.
• He was the fifth lawyer to be directly elevated to the Supreme Court Bench and the first Parsi to serve on the Supreme Court of India post-independence.
• His judgments include those in Shayara Bano v. Union of India (triple talaq case), Navtej Johar v. Union of India (decriminalization of homosexuality), and Indian Young Lawyers Association v. State of Kerala (Sabarimala case).
• Justice M V Muralidharan
• Justice M V Muralidharan is a judge at the Madras High Court, with expertise in handling a variety of cases, including constitutional and civil matters.
• He served as the Acting Chief Justice of the Manipur High Court and contributed to enhancing judicial infrastructure and processes in the state.
• Justice Muralidharan is known for promoting transparency and upholding principles of natural justice in his judicial decisions.
• Justice Uday Umesh Lalit
• Justice U U Lalit served as the 49th Chief Justice of India, albeit for a short tenure of 74 days in 2022.
• Before becoming a judge, he was a renowned criminal lawyer and represented significant cases in the Supreme Court, including the 2G spectrum case.
• Justice Lalit played a key role in decisions such as Shreya Singhal v. Union of India (striking down Section 66A of the IT Act) and Pradyuman Thakur Case (school safety guidelines).

Given:

The largest four-digit number which when divided by 7, 9, and 11 leaves a remainder of 5 in each case.

Formula used:

We need to find the largest four-digit number N such that:

N ≡ 5 (mod 7)

N ≡ 5 (mod 9)

N ≡ 5 (mod 11)

Since 7, 9, and 11 are pairwise coprime, we can use the Chinese Remainder Theorem (CRT). The number will be of the form:

N = 7 × 9 × 11 × k + 5

Where k is an integer.

Calculation:

First, we calculate the product of the moduli:

7 × 9 × 11 = 693

So the number N can be written as:

N = 693k + 5

We need to find the largest four-digit number, so:

693k + 5 ≤ 9999

⇒ 693k ≤ 9994

⇒ k ≤ 14.42

The largest integer k is 14.

Now, we calculate N:

N = 693 × 14 + 5

N = 9702 + 5

N = 9707

∴ The correct answer is option 2.

Given:

$\dfrac{1}{2} \left[ \dfrac{1}{3} - \left( \dfrac{1}{2} - \dfrac{1}{4} \right) + \dfrac{1}{2} - \dfrac{1}{4} \right]$ = ?

Formula used:

Simplification of fractions and basic arithmetic operations

Calculation:

$\dfrac{1}{2} \left[ \dfrac{1}{3} - \left( \dfrac{1}{2} - \dfrac{1}{4} \right) + \dfrac{1}{2} - \dfrac{1}{4} \right]$ = ?

⇒ $\dfrac{1}{2} \left[ \dfrac{1}{3} - \left( \dfrac{2}{4} - \dfrac{1}{4} \right) + \dfrac{2}{4} - \dfrac{1}{4} \right]$

⇒ $\dfrac{1}{2} \left[ \dfrac{1}{3} - \dfrac{1}{4} + \dfrac{1}{4} \right]$

⇒ $\dfrac{1}{2} \left[ \dfrac{1}{3} \right]$

⇒ $\dfrac{1}{6}$

∴ The correct answer is option (3).

Given:

Three parallel lines are cut through by a transversal. The greater two angles are of equal measure. The ratio of a greater angle to the smaller angle is 7 ∶ 3.

Formula used:

Let the smaller angle be 3x and the greater angle be 7x .

Sum of the angles around a point on a straight line is 180º.

Calculation:

3x + 7x = 180º

⇒ 10x = 180º

⇒ x = 18º

Greater angle = 7x = 7 × 18º

⇒ Greater angle = 126º

∴ The correct answer is option 2.

The correct answer is Indian Railway Catering and Tourism Corporation

Key Points

• IRCTC stands for Indian Railway Catering and Tourism Corporation.
• It is a public sector undertaking in India that offers ticketing, catering, and tourism services for the Indian Railways
• IRCTC is the official website of the Indian Railways for booking tickets online.
• Some of its objectives include: Being customer-centric, Using resources efficiently, Improving human resource performance, Becoming a leading public sector catering service, and Creating business opportunities through public-private partnerships. ​

Additional Information

• Benefits of IRCTC
• Offers online ticket booking service with payment options including Net Banking, and Debit/Credit Card.
• Provides a Travel Card for regular travellers.
• Unique features for train bookings are available.
• Facility for Tatkal ticket booking is available.
• Flight booking facility is also included.
• Provides service for checking ticket status and seat availability.

The logic followed here is:

Logic: Types of Water Bodies.

Here,

Pond, River, and Lake are all natural water bodies.

Similarly,

Tubewell is not a natural water body, it is a man-made structure used to extract water from the ground.

Hence, the correct answer is "Option 4".

Given:

The average of 3 consecutive natural numbers (which are in increasing order) is K. If two consecutive numbers, just next to the first set of numbers, are added, then the new average will become:

Formula used:

Average = Sum of numbers / Number of numbers

Calculations:

Let the 3 consecutive natural numbers be (n-1), n, (n+1).

Average of these 3 numbers = K

⇒ K = (n-1 + n + n+1) / 3

⇒ K = (3n) / 3

⇒ K = n

Next two consecutive numbers are (n+2) and (n+3).

Sum of all 5 numbers = (n-1) + n + (n+1) + (n+2) + (n+3)

⇒ Sum = 5n + 5

New average = Sum of all 5 numbers / 5

⇒ New average = (5n + 5) / 5

⇒ New average = n + 1

⇒ New average = K + 1

∴ The correct answer is option (2).

The correct answer is cricket

Key Points

• Silly point", "slip", and "gully" are all terms used in the sport of cricket to describe fielding positions:
• Silly point
• It is a fielder is positioned at a 45-degree angle from the batter, and is usually close to the batting position.
• This position is considered "silly" because the fielder is at risk of being hit by a firm stroke from the batter.
• Slip
• It is a fielder who is positioned to catch balls that just edge off the bat.
• There are often multiple slips next to each other, numbered outwards from the wicket-keeper.
• Gully
• A fielding position where the player stands opposite the traditional gully fielder.

Additional Information

The correct answer is WAN

Key Points

• A Wide Area Network (WAN) covers the largest geographical area
• A WAN can cover a city, country, or even the entire world.
• The internet is the largest WAN.
• Some WANs are private and used by businesses to connect sites that are far apart
• A wide area network(WAN) connects computers in different cities or countries.
• The network to connect computers that are thousands of miles apart is not built by an organization. Instead, the organization uses leased telephone lines.
• It is owned and managed collectively by many cooperating organizations.

Additional InformationLAN

• A local area network(LAN) connects computers that are in the same building.
• A network spread over a few kilometers also comes under LAN.
• The LAN is usually realized using Ethernet technology or token ring technology. Fiber Distributed Data Interface (FDDI) is also becoming popular.
• LAN or Local Area Network connects network devices in such a way that personal computers and workstations can share data, tools, and programs.
• Usually, LAN is under the control of a single organization.
• The prime objective of LAN is to facilitate information and resource sharing within an organization.

 MAN:

• It stands for the "Metropolitan Area Network."
• A MAN is a network that spans a large area, such as a town or city.
• MAN network covers a larger area by connections LANs to a larger network of computers.
• It is larger than a campus area network (CAN) but smaller than a wide area network (WAN).
• An example of a MAN is a series of wireless routers distributed across a city.

PAN:

• A Personal Area Network (PAN) is a computer network that connects devices near a person.
• The range of a PAN is typically a few meters.
• Examples of wireless PAN devices include wireless mice, wireless keyboards, cell phone headsets, printers, bar code scanners, and game consoles

The diagram that best represents the relationship between Tripura, Sikkim, and Arunachal Pradesh  is shown below :

Tripura, Sikkim, and Arunachal Pradesh are three different states in India.

Hence, "Option 3" is the correct answer.

The correct answer is Quad Summit

Key Points

• The summit held in March 2021 for an informal strategic dialogue between the US, Japan, Australia, and India was a Quadrilateral Security Dialogue (QUAD) summit
• The grouping is maintained by semi-regular summits, information exchanges, and military drills between member countries.
• The forum was initiated as a dialogue in 2007 by Prime Minister Shinzo Abe of Japan, with the support of Vice President Dick Cheney of the US, Prime Minister John Howard of Australia, and Prime Minister Manmohan Singh of India.
• The dialogue was paralleled by joint military exercises of an unprecedented scale, titled Exercise Malabar.
• The diplomatic and military arrangement was widely viewed as a response to increasing Chinese economic and military power, and the Chinese government responded to the Quad by issuing formal diplomatic protests to its members.

Additional Information

• Non-Aligned Movement (NAM) Summits
• The NAM was established during the Cold War to represent countries that did not align themselves with either the United States or the Soviet Union.
• It aims to promote peace, equality, and mutual respect among nations and support decolonization efforts.
• The first NAM summit, held in Yugoslavia under the leadership of President Josip Broz Tito, aimed to unite newly independent nations.
• Arcadia Conference
• ​The Arcadia Conference (also known as the Anglo-American Conference) was held during World War II in 1941 between Winston Churchill and Franklin D. Roosevelt.
• The main goal was to establish a common war strategy and agree on post-war plans.
• The Atlantic Charter, which outlined post-war peace objectives, including self-determination, economic cooperation, and global security.
• Cooperation on military strategy and planning, leading to closer collaboration between the UK and the US.
• Francophonie Summits
• ​The Francophonie Summits are held by the International Organisation of La Francophonie (OIF), focusing on promoting the French language, cultural diversity, peace, democracy, and sustainable development among French-speaking countries.

Given:

Principal (P) = ₹1,800

Rate (r) = 10% per annum

Time (t) = 2 years

Compounded half yearly

Formula used:

A = P(1 + r/n)^nt

Where, n = number of times interest applied per time period

Calculations:

n = 2 (since interest is compounded half yearly)

r/n = 10/2 = 5% per half year

nt = 2 × 2 = 4

A = 1800(1 + 5/100)⁴

⇒ A = 1800(1 + 0.05)⁴

⇒ A = 1800(1.05)⁴

⇒ A = 1800 × 1.21550625

⇒ A = 2187.91

Compound Interest (CI) = A - P

⇒ CI = 2187.91 - 1800

⇒ CI = 387.91

∴ The correct answer is option (2).

Given:

What should be subtracted from $\dfrac{3}{4} - \dfrac{2}{3}$ to get $\dfrac{-1}{6}$?

Formula used:

(Initial Value) - (Subtracted Value) = Result

Calculations:

$\dfrac{3}{4} - \dfrac{2}{3} - x = \dfrac{-1}{6}$

⇒ $\left(\dfrac{9}{12} - \dfrac{8}{12}\right) - x = \dfrac{-1}{6}$

⇒ $\dfrac{1}{12} - x = \dfrac{-1}{6}$

⇒ $-x = \dfrac{-1}{6} - \dfrac{1}{12}$

⇒ $-x = \dfrac{-2}{12} - \dfrac{1}{12}$

⇒ $-x = \dfrac{-3}{12}$

⇒ $-x = \dfrac{-1}{4}$

⇒ $x = \dfrac{1}{4}$

∴ The correct answer is option (3).

The correct answer is The White Tiger

Key Points

• At the Oscars 2021, the film that was nominated in the Best Adapted Screenplay category was The White Tiger (adapted by Ramin Bahrani from Aravind Adiga's novel of the same name).
• The story follows Balram Halwai, a poor Indian man who rises to become a successful entrepreneur through a series of morally ambiguous choices.
• The film explores themes of class disparity, corruption, and the challenges of modern India.
• Ramin Bahrani's adaptation of Adiga's novel received praise for maintaining the essence of the book while successfully translating it to the screen.

Additional Information

• The Oscar Prize is given in the field of Films.
• The Oscar Award is cinema's most prestigious award,
• It is awarded to recognize the excellence of professionals including directors, actors, and writers in the film industry.
• The award is organized annually by the American Academy of Motion Picture Arts and Sciences (AMPAS).
• The award consists of 24 categories. Those given for artistic and technical qualifications in the film industry.
• This is the award ceremony given to the world's oldest cinema world.
• Award winners are given a copy of a gold statue.
• It is officially known as 'Academy Award Merit' and commonly known as 'Oscar'.

Important Points

• Emile Jannining was the first actor to win the Oscar Awards.
• He won the award for the movie- The Last Command and The Way of All Flesh.
• First Best Actress - Janet Gaynor
• First Best Outstanding Picture - Wings
• These awards are presented by the Academy of Motion Picture Arts and Sciences.
• The first Oscars honored the best films of 1927 and 1928.
• Douglas Fairbanks presented the award. He was the President of Academy.
• The awards were awarded in 12 categories.

The correct answer is Jabalpur.

Key Points

• The West Central Railway is one of the 18 zones under Indian Railways.
• West Central Railway was issued by the Ministry of Railway on 4^th July 2002.
• It came into existence on 1^st April 2003.
• The headquarters of West Central Railway is at Jabalpur.
• West Central Railway covers three Indian states namely Madhya Pradesh, Uttar Pradesh, and Rajasthan.
• Jabalpur railway division, Bhopal railway division, and Kota railway division are the three divisions of West Central Railway.​

Important Points

• Jabalpur is a city in the Indian state of Madhya Pradesh.
• The principal seat of Madhya Pradesh high court is at Jabalpur.
• The famous Dhuandhar waterfall is located in Jabalpur.
• It is the second-most-populous district in Madhya Pradesh.
• The Army headquarters of Madhya Pradesh, Chhattisgarh, Orissa, Bihar and Jharkhand are located in Jabalpur.

Additional Information

• The headquarters of the central and western railway is in Mumbai
• The headquarters of the northern railway is in Delhi.
• The headquarters of the southwestern railway is in Hubli.

Given:

The value of tan 75º - cot 75º is equal to:

Formula used:

tan (90º - θ) = cot θ

cot (90º - θ) = tan θ

tan 75º = cot 15º

cot 75º = tan 15º

Calculation:

tan 75º - cot 75º = cot 15º - tan 15º

tan 15º = 2 - √3

cot 15º = 2 + √3

⇒ tan 75º - cot 75º = (2 + √3) - (2 - √3)

⇒ tan 75º - cot 75º = 2 + √3 - 2 + √3

⇒ tan 75º - cot 75º = 2√3

∴ The correct answer is option (4).

The correct answer is 22

Key Points

• The Eighth Schedule to the Constitution of India lists the official languages of India.
• As per Articles 344(1) and 351 of the Indian Constitution, the eighth schedule includes the recognition of the 22 languages.
• Out of them, 14 were initially included in the Constitution.
• Sindhi was added in 1967 by the 21st constitutional amendment act.
• Konkani, Manipuri (Meitei), and Nepali were added in 1992 by the 71st Constitutional Amendment Act.
• Bodo, Dogri, Maithili, and Santali were added in 2003 by the 92nd Constitutional Amendment Act.

Additional Information

• The Sixth Schedule consists of provisions for the administration of tribal areas in Assam, Meghalaya, Tripura, and Mizoram, according to Article 244 of the Indian Constitution.
• The Seventh Schedule to the Constitution of India defines and specifies the allocation of powers and functions between the Union & States.
• The Ninth Schedule contains a list of central and state laws that cannot be challenged in courts. The Schedule became a part of the Constitution in 1951 when the document was amended for the first time.

Given:

Cost Price (CP) = ₹950

Selling Price (SP) = ₹1000

Formula used:

Percentage Gain = $\dfrac{(SP - CP)}{CP} \times 100$

Calculation:

Percentage Gain = $\dfrac{(1000 - 950)}{950} \times 100$

⇒ Percentage Gain = $\dfrac{50}{950} \times 100$

⇒ Percentage Gain = $\dfrac{50 \times 100}{950}$

⇒ Percentage Gain = $\dfrac{5000}{950}$

⇒ Percentage Gain = $5\frac{5}{19}$ %

∴ The correct answer is option (2).

The correct answer is Bankim Chandra Chattopadhyay

Key Points

• Bankim Chandra Chatterjee is the author of "Durgeshnandini".
• "Vande Mataram" was written by Bankim Chandra Chatterjee.
• It was first composed in the Sanskrit language in the year of 1870s (1875). Later in 1882, it was included in the Bengali novel Anandamath.
• Other notable works of Bankim Chandra Chatterjee:
• Anandmath, Kapalkundala, Komalakanter Doptor, Mrinalini, Krishnakanter Will, Bishbrikhsha, Rajsingho, Sitaram, Devi Chaudhurani.

Additional Information

• Premchand​
• The original name of Munshi Premchand was Dhanpat Rai Srivastava.
• He was an Indian writer famous for his modern Hindustani literature.
• Munshi Premchand is one of the most celebrated writers of the Indian subcontinent and is regarded as one of the foremost Hindi writers of the early twentieth century.
• He published his first collection of five short stories in 1907 in a book called Soz-e Watan.
• He began writing under the pen name "Nawab Rai", but subsequently switched to "Premchand", Munshi being an honorary prefix.
• Rabindranath Tagore​
• Rabindranath Tagore was born on 7th May 1861 in Kolkata.
• He was a poet, litterateur, philosopher, playwright, composer, and painter.
• He was awarded the Nobel Prize for Literature in 1913 for the creation of the world-famous epic Gitanjali.
• He is the only Indian to win the Nobel in the field of literature.
• Rabindra Nath Tagore gave up his 'Knighthood' in protest of the Jallianwala Bagh Massacre.
• He was awarded the knighthood in the year 1915 by King George V.
• He gave Gandhiji the title of Mahatma.
• He is the only poet whose two compositions became the national anthem of two countries.
• The national anthem of India - Jana-Gana-Mana.
• The national anthem of Bangladesh - Amar Sonar Bangla.
• Tagore established Santiniketan with trees, gardens, and a library in the lap of nature.
• Tagore also established the Vishwabharati University here.
• On 7 August 1941, he breathed his last in Kolkata

The correct answer is Vindhyachal Thermal Power Station

Key Points

• As of January 2021, the Vindhyachal Thermal Power Station in Madhya Pradesh was the largest thermal power plant in India.
• The Vindhyachal Thermal Power Station is also the 10th largest coal-fired power station in the world.
• It is located in Singrauli district, Madhya Pradesh
• The owner of it is National Thermal Power Corporation (NTPC).

Additional Information

• More than 65% of India's electricity generation capacity comes from thermal power plants, with about 85% of the country's thermal power generation being coal-based.
• Thermal power plants contribute the largest proportion of electricity into the national power grid of India.
• There are three kinds of thermal power plants in India with a total installed capacity of 221,802.59 MW.
• Types of Thermal Power Plants
• ​As the name suggests, thermal power plants generate electricity by using heat from a fuel source.
• The heat usually generates steam in a boiler which is then used to run a steam turbine connected to a generator.
• They are classified according to the heat source as follows:
• Coal-Fired Gas Diesel or Liquid fuel Geothermal Biomass Waste Material
• ​India mainly uses three types of thermal power plants which are listed below along with their installed capacity as of January 2021:
• Coal: 206404.50 MW
• Gas: 24956.51 MW
• Liquid Fuel(Diesel): 509.71 MW
• The total capacity of thermal power plants as on January 31, 2021, all across India is 231870.72 MW.

Given:

The average of a, 11, 23, and 17 is 15.

The average of a, b, 12, and 25 is 16.

Formula used:

Average = (Sum of terms) / (Number of terms)

Calculation:

For the first average:

(a + 11 + 23 + 17) / 4 = 15

⇒ (a + 51) / 4 = 15

⇒ a + 51 = 60

⇒ a = 9

For the second average:

(a + b + 12 + 25) / 4 = 16

⇒ (9 + b + 37) / 4 = 16

⇒ (b + 46) / 4 = 16

⇒ b + 46 = 64

⇒ b = 18

Value of a/b:

= 9 / 18 = 1 / 2

∴ The correct answer is option 4.

The correct answer is 1927.

Key Points

• The Federation of Indian Chambers of Commerce and Industry (FICCI) is a non-profit trade organization and lobbying organization located in India.
• In 1927, Indian businessmen Mr. G D Birla and Purshottamdas Thakurdas launched the company on Mahatma Gandhi's recommendation.
• It is India's largest, most influential, and oldest commercial organization.
• It is a non-governmental, non-profit organization. Members of FICCI come from the private and public sectors, as well as SMEs and multinational enterprises.
• The chamber has around 250,000 indirect members through a variety of regional chambers of commerce.
• It focuses on firm development, advertising, and networking in a given industry.

Additional Information 

• It is based in New Delhi, India's capital, and operates in 12 states and eight countries worldwide.
• India's only national ATA Carnet issuing and assuring organization is the FICCI.
• ATA Carnets are used to carry temporary equipment across borders by TV/film crews, journalists, engineers, musicians, and industry.

The correct answer is Container Corporation of India

Key Points

• Container Corporation of India Limited is a public sector undertaking (PSU)
• It plays a vital role in the development of multimodal transportation and trade across India.
• It was founded in 1988
• A PSU is a government-owned entity in India where at least 51% of the stake is owned by the government.
• CONCOR provides integrated cargo handling services at various logistics hubs.
• PSUs perform commercial functions for the government.

Additional Information

• Some other examples of PSUs include:
• Bharat Electronics Limited
• Engineers India Limited
• Hindustan Aeronautics Limited
• National Aluminium Company Limited
• NTPC Limited
• National Hydroelectric Power Corporation (NHPC)
• Rural Electrification Corporation (REC)
• North Eastern Electric Power Corporation (NEEPCO)
• Power Finance Corporation (PFC)
• Power Grid Corporation of India (POWER GRID)

Given:

10p_r = 5040

Formula used:

nPr = n! / (n-r)!

Calculation:

10p_r = 10! / (10-r)!

5040 = 10! / (10-r)!

10! = 3628800

⇒ 5040 = 3628800 / (10-r)!

⇒ (10-r)! = 3628800 / 5040

⇒ (10-r)! = 720

By trial and error, we find that 720 = 6!

⇒ 10-r = 6

⇒ r = 4

∴ The correct answer is option (4).

The correct answer is Squash

Key Points

• Dipika Pallikal Karthik is an internationally recognised Indian squash player.
• She was the first Indian to break into the top 10 in the PSA Women's rankings.
• Dipika has several achievements in her squash career.
• She won three WISPA tour titles in 2011, and she achieved her career-best ranking of World No. 10 in December 2012.
• In addition, Dipika and Joshna Chinappa won the squash women's doubles gold medal in the 2014 Commonwealth Games.

Additional Information

The correct answer is cellulose

Key Points

• The plant cell wall is primarily composed of cellulose, which is a complex carbohydrate or polysaccharide.
• Cellulose provides structural support to the plant cell, making it rigid and helping it maintain its shape.
• It is a crucial component for the cell wall's mechanical strength and is involved in the growth process of plants.
• Besides cellulose, plant cell walls also contain other polysaccharides like hemicellulose and pectin, but cellulose is the most abundant.

Additional Information

Given:

Discount = 20%

Percentage profit = 20%

Formula used:

Marked Price (MP) = Cost Price (CP) + Markup

Discounted Price = MP - Discount

Profit = Discounted Price - CP

Calculation:

Let CP = 100

Markup = 20% of CP = 20% of 100 = 20

⇒ MP = CP + Markup = 100 + 20 = 120

Discount = 20% of MP = 20% of 120 = 24

⇒ Discounted Price = MP - Discount = 120 - 24 = 96

Profit = Discounted Price - CP = 96 - 100 = -4 (loss)

Since the result shows a loss, revise the approach:

Let CP = 100

Markup = 20% of CP = 20% of 100 = 20

⇒ MP = CP + Markup = 100 + 20 = 120

To achieve a 20% profit on CP:

Required Selling Price = CP + Profit = 100 + 20 = 120

Considering discount given:

Discounted Price = MP - Discount = 120 - 24 = 96

96 should achieve a profit of 20%

Revised calculations:

Let CP = 100

Required Selling Price = CP + Profit = 100 + 20 = 120

Discounted Price = 120 - 24 = 96

⇒ MP should be higher to achieve the desired profit post discount

Let new MP be x

Discounted Price = x - 20% of x = 0.8x

0.8x should give 20% profit on CP:

⇒ 0.8x = 120

⇒ x = 120 / 0.8

⇒ x = 150

MP = 150

Percentage increase above CP:

⇒ (MP - CP) / CP × 100

⇒ (150 - 100) / 100 × 100

⇒ 50 / 100 × 100

⇒ 50%

∴ The correct answer is option (2).

Given:

What number should be added to $-2 \over 3$ ?

Formula used:

Let the number be x.

$\dfrac{-5}{7} + x = \dfrac{-2}{3}$

Calculation:

$\dfrac{-5}{7} + x = \dfrac{-2}{3}$

⇒ x = $\dfrac{-2}{3} - \dfrac{-5}{7}$

⇒ x = $\dfrac{-2}{3} + \dfrac{5}{7}$

⇒ x = $\dfrac{(-2 \times 7) + (5 \times 3)}{(3 \times 7)}$

⇒ x = $\dfrac{-14 + 15}{21}$

⇒ x = 1/21

∴ The correct answer is option (2).

Given:

We need to find the number of four-digit numbers completely divisible by 5, 12, and 18.

Formula used:

The least common multiple (LCM) of the numbers to find the common divisor:

LCM(5, 12, 18)

Calculation:

Prime factorization:

5 = 5

12 = 2² × 3

18 = 2 × 3²

LCM(5, 12, 18) = 2² × 3² × 5 = 4 × 9 × 5 = 180

Four-digit numbers range: 1000 to 9999

First multiple of 180 within range: 180 × 6 = 1080

Last multiple of 180 within range: 180 × 55 = 9900

Number of terms:

⇒ (9900 - 1080) / 180 + 1

⇒ 8820 / 180 + 1

⇒ 49 + 1

⇒ 50

∴ The correct answer is option (4).

The correct answer is Manipur

Key Points

• The state that did NOT hold assembly elections in March-April 2021 was Manipur.
• The assembly elections in March-April 2021 were held in Kerala, West Bengal, and Assam.
• Legislative assembly
• In the Indian system of government , a representative who is elected to the legislature of the state government is known as a member of the legislative assembly (MLA).
• The voters choose one representative from each constituency, who subsequently joins the legislative assembly (MLA).
• In India, elections  held in 2021 for the Lok Sabha, Rajya Sabha, legislative assemblies of four states and one union territory, as well as other municipal, state, and federal councils, committees, and legislative assemblies.

Additional Information

• Kerala:
• It Held its legislative assembly elections on April 6, 2021.
• The Left Democratic Front (LDF) led by Pinarayi Vijayan won a second consecutive term in power.
• West Bengal:
• The elections were held in multiple phases between March 27 and April 29, 2021.
• Mamata Banerjee’s All India Trinamool Congress (TMC) won a third consecutive term, defeating the Bharatiya Janata Party (BJP).
• Assam:
• The elections were held in three phases from March 27 to April 6, 2021.
• The Bharatiya Janata Party (BJP)-led alliance retained power in Assam.

Given:

The GCD of two numbers is 9 and their LCM is 270. If one number is 27.

Formula used:

GCD × LCM = Number1 × Number2

Calculation:

9 × 270 = 27 × Number2

⇒ 2430 = 27 × Number2

⇒ Number2 = 2430 ÷ 27

⇒ Number2 = 90

∴ The correct answer is option (3).

The logic followed here is:

HISTORICAL is written as IKVXTQGZWG

Similarly,

ACCESSIBLE is written as

Hence, "Option 2" is the correct answer.

Shortcut Trick

 

Alternate Method

Given:

Principal (P) = ₹10,00,000

Rate (R) = 12% per annum

Time (T) = 18 months = 1.5 years

Compounded half-yearly

Formula used:

Simple Interest (SI) = $\dfrac{P \times R \times T}{100}$

Compound Interest (CI) = $P \left(1 + \dfrac{R}{2 \times 100}\right)^{2 \times T} - P$

Difference = CI - SI

Calculation:

Simple Interest (SI) = $\dfrac{10,00,000 \times 12 \times 1.5}{100}$

⇒ SI = ₹1,80,000

Compound Interest (CI) = $10,00,000 \left(1 + \dfrac{12}{2 \times 100}\right)^{2 \times 1.5} - 10,00,000$

⇒ CI = $10,00,000 \left(1 + 0.06\right)^3 - 10,00,000$

⇒ CI = $10,00,000 \left(1.06\right)^3 - 10,00,000$

⇒ CI = $10,00,000 \times 1.191016 - 10,00,000$

⇒ CI = ₹11,91,016 - ₹10,00,000

⇒ CI = ₹1,91,016

Difference = CI - SI

⇒ Difference = ₹1,91,016 - ₹1,80,000

⇒ Difference = ₹11,016

∴ The correct answer is option (3).

The correct answer is August

Key Points

• Quit India Movement
• The Quit India Movement was launched by Mahatma Gandhi at the Bombay session of the All-India Congress Committee on 8th August 1942.The Quit India Movement was launched by Mahatma Gandhi at the Bombay session of the All-India Congress Committee on 8th August 1942.
• The movement called for an end to British rule and demanded immediate independence for India
• A significant feature of the Quit India Movement was the emergence of what came to be known as parallel governments in some parts of the country.
• The first one was proclaimed in Ballia, in east UP, in August 1942.

Additional Information

• On 8^th August 1942, Mahatma Gandhi gave a clarion call to end the British rule and launched the Quit India Movement at the session of the All-India Congress Committee in Mumbai.
• Gandhiji gave the call “Do or Die” in his speech delivered at the Gowalia Tank Maidan, now popularly known as August Kranti Maidan.
• Aruna Asaf Ali popularly known as the 'Grand Old Lady' of the Independence Movement is known for hoisting the Indian flag at the Gowalia Tank Maidan in Mumbai during the Quit India Movement.
• The slogan ‘Quit India’ was coined by Yusuf Meherally, a socialist and trade unionist who also served as Mayor of Mumbai.
• Meherally had also coined the slogan “Simon Go Back”.​

The correct answer is 30% zinc and 70% copper

Key Points

• Brass is a mixture of 70% copper and 30% zinc.
• Brass is an alloy, which is a substance made by melting two or more elements together, at least one of which is a metal.
• Brass has many useful properties, including:
• Brass is stronger and more durable than pure copper or zinc.
• Brass is resistant to corrosion and water.
• Brass has a lower melting point than copper or zinc.
• Brass is more malleable than bronze or zinc.
• Brass has good electrical and thermal conductivity.
• The color of brass can range from red to yellowish-brown, depending on the amount of zinc added to the alloy.

Additional InformationOther important alloys 

Given:

0.25(0.25 × 0.25) ÷ 0.625 = ?

Formula used:

Use BODMAS/BIDMAS rules for calculation.

Calculation:

0.25(0.25 × 0.25) ÷ 0.625 = ?

⇒ 0.25(0.0625) ÷ 0.625

⇒ 0.015625 ÷ 0.625

⇒ 0.025

∴ The correct answer is option (4).

The logic followed here is:

Logic: Object and its corresponding ammunition.

Here,

Bow : Arrow → Arrow is the ammunition used with a Bow.

Similarly,

Gun : ?

The correct answer is Bullet, as Bullet is the ammunition used with a Gun.

Hence, the correct answer is "Option 3".

The correct answer is K Sivan.

Key Points 

• Chandrayaan-2 is India’s 2nd moon mission which was successfully launched by GSLV-MkIII-M1 from Second Launch Pad at Satish Dhawan Space Centre, Sriharikota in Andhra Pradesh.
• Chandrayaan-2 was launched on 22nd July 2019.
• In 2019, Chandrayaan-2 was launched with an orbiter and a lander named Vikram, and a six-wheeled rover named Pragyaan ISRO.
• The orbiter is still functional and the lander crashed before its induction in any research operation.
• The Lander was named Vikram after Dr. Vikram A Sarabhai who is known as the Father of the Indian Space Programme.
• It was designed to function for one lunar day, which is equivalent to 14 Earth days.
• Lander Vikram weighs 1471 kg.

Additional Information

• Rover- Pragyan:
• Pragyan in Sanskrit means wisdom.
• It is a 6-wheeled robotic vehicle, weighing 27-kg. It will set out on its job of collecting information on the lunar surface.​
• Some important objectives behind it were -

1. To study lunar topography, mineralogy, elemental abundance, and signature of hydroxyl and ice.
2. To study the water ice in the south polar region and thickness of the lunar regolith on the surface.
3. To map the lunar surface and help to prepare 3D maps of it.

Important Points 

• Important scientists and engineers who were involved in the development of Chandrayaan-2 -

1. Ritu Karidhal
2. Muthayya Vanitha
3. K Kalpana
4. G Narayanan
5. G Nagesh

The correct answer is Jodhpur

Key Points

• The Blue City of India is the nickname of Jodhpur.
• It is called Blue City because houses are painted in blue color in the old city area.
• Jodhpur is situated in Rajasthan.
• Jodhpur is in the Thar Desert area of the western part of the country.

Additional Information