SSC CHSL Tier-1 2023: Official Paper (Held On: 10 Aug, 2023 Shift 2) (Previous Year Paper)

The logic followed here is,

Logic: Second Number = (First Number × 5) - 3

(12, 57)

→ 57 = (12 × 5) - 3

→ 57 = 60 - 3

(16, 77)

→ 77 = (16 × 5) - 3

→ 77 = 80 - 3

Let's check each option as per the logic,

1) (11, 49)

→ 49 = (11 × 5) - 3

→ 49 ≠ 55 - 3

2) (4, 14) 

→ 14 = (4 × 5) - 3

→ 14 ≠ 20 - 3

3) (8, 37) 

→ 37 = (8 × 5) - 3

→ 37 = 40 - 3 → Satisfies the logic.

4) (21, 106) 

→ 106 = (21 × 5) - 3

→ 106 ≠ 105 - 3

Here, we can see that only Option 3 satisfies the logic.

Hence, the correct answer is "8, 37".

As per the given information,

If it was Friday three days ago → Today is Monday.

150 days ago from today, i.e 21 weeks + 3 odd days

⇒ Monday - 3 = Friday

hence, the correct answer is "Friday".

Mistake Points The question is asks to find the day before 150 days, so subtract the odd day from today.

1) CYF

2) OJL

3) LGI

4) UPR

Here, we can see that Option 1 is different from the others.

Hence, the correct answer is "CYF".

The equation we get after interchanging the signs: 

→ 25 - 6 × 4 + 18 ÷ 9 = ?

→ 25 - 6 × 4 + 2 = ?

→ 25 - 24 + 2 = ?

→ 27 - 24 = 3

Hence, the correct answer is "3".

The pattern followed here is,

Hence, the correct answer is "DR 69".

Let's count the number of rectangles,

Here, we can see that there are 17 rectangles.

Hence, the correct answer is "17".

the pattern followed here is,

Hence, the correct answer is "NOA".

The logic followed here is,

Logic: Second Number = (First Number × 4) + 4

Let's check each option as per the logic,

1) 61 ∶ 248

→ 248 = (61 × 4) + 4

→ 248 = 244 + 4

2) 39 ∶ 160

→ 160 = (39 × 4) + 4

→ 160 = 156 + 4

3) 37 ∶ 152

→ 152 = (37 × 4) + 4

→ 152 = 148 + 4

4) 53 ∶ 208

→ 208 = (53 × 4) + 4

→ 208 ≠ 212 + 4 → Doesn't satisfy the logic.

Here, we can see that only Option 4 doesn't satisfy the logic.

Hence, the correct answer is "53 ∶ 208".

The correct mirror image of the given figure is shown below,

Hence, the correct answer is "Option 4".

The logic followed here is,

Logic: Both words of the pair are synonyms.

Latent ∶ Dormant

→ Both words are synonyms.

Let's check each option,

1) Nice ∶ Demanding

→ Both words are not synonyms.

2) Picky ∶ Fussy

→ Both words are synonyms. → Follows the logic.

3) Lathe ∶ Latex

→ Both words are not synonyms.

4) Pious ∶ Dainty

→ Both words are not synonyms.

Here, we can see that only Option 2 follows the logic.

Hence, the correct answer is "Picky ∶ Fussy".

The pattern followed here is,

Hence, the correct answer is "69".

The pattern followed here is,

Hence, the correct answer is "455".

Let's check each option,

1) ÷ and ×

→ 63 - 23 ÷ 132 × 12 + 7 = 117

→ 63 - 0.17 × 12 + 7 = 117

→ 63 - 2.04 + 7 = 117

→ 70 - 2.04 = 117

→ 67.96 ≠ 117

→ LHS ≠ RHS

2) + and -

→ 63 + 23 × 132 ÷ 12 - 7 = 117

→ 63 + 23 × 11 - 7 = 117

→ 63 + 253 - 7 = 117

→ 316 - 7 = 117

→ 309 ≠ 117

→ LHS ≠ RHS

3) - and ​÷

→ 63 ÷ 23 × 132 - 12 + 7 = 117

→ 2.7 × 132 - 12 + 7 = 117

→ 356.4 - 12 + 7 = 117

→ 363.4 - 12 = 117

→ 351.4 ≠ 117

→ LHS ≠ RHS

4) + and ×

→ 63 - 23 + 132 ÷ 12 × 7 = 117

→ 63 - 23 + 11 × 7 = 117

→ 63 - 23 + 77 = 117

→ 140 - 23 = 117

→ 117 = 117

→ LHS = RHS

Here, we can see that only Option 4 satisfies the equation.

Hence, the correct answer is "+ and ×"

The family tree can be drawn using the given information,

Here, we can see that R is the husband's mother of F.

Hence, the correct answer is "Husband's mother".

ZPJ ∶ FNF

SNT ∶ YLP

Let's check each option,

1) HIG ∶ NFC

2) LOS ∶ FQW

3) RJX ∶ XHT

4) AND ∶ GQZ

Here, we can see that only Option 3 follows the same relationship.

Hence, the correct answer is "RJX ∶ XHT".

The logic followed here is,

Logic: Second Number = First Number × Third Number

4 - 24 - 6

→ 24 = 4 × 6

2 - 6 - 3

→ 6 = 2 × 3

Let's check each option as per the logic,

1) 9 - 17 - 3

→ 17 ≠ 9 × 3

2) 6 - 30 - 7

→ 30 ≠ 6 × 7

3) 1 - 9 - 8

→ 9 ≠ 1 × 8

4) 5 - 35 - 7

→ 35 = 5 × 7 ⇒ Follows the logic.

Hence, the correct answer is "5 - 35 - 7".

As per the given information,

Here, we can see that the code for 'U' is "4".

Hence, the correct answer is "4".

As per the given information,

Here, we can see that the code for 'F' is 7.

Hence, the correct answer is "7".

The logic followed here is:

Hence, the correct answer is "Option 3".

The logic followed here is,

Hence, the correct answer is "63".

The least possible venn diagram is shown below,

 

Conclusions: 

(I) Some Turbans are Caps → Not follows (Because this is possible but not definite).

(II) All Hats are Monkeys → Not follows (Because this is possible but not definite).

Hence, the correct answer is "Both conclusions (I) and (II) do not follow".

Let's check each option,

Here, we can see that Option 2 completes the series.

Hence, the correct answer is "LKLM".

The family tree can be drawn using the given information,

Here, we can see that B is the father of D.

Hence, the correct answer is "Father".

The pattern followed here is:

Hence, the correct answer is "CCN".

The correct mirror image of the given figure is shown below,

Hence, the correct answer is "Option 1".

The correct answer is Japan.

Key Points

• Procedure established by law:-
• It means that a law has been duly enacted by the competent body following the correct procedure. For example, the procedure mentioned in the constitution.
• The Doctrine of Procedure established by law has been taken from the Japanese Constitution.​

Additional Information

The other borrowed provisions from different countries and details of those are given in below:

The correct answer is during any specified period of time.

Key Points

• Supply of Money:-
• It is the quantity of money available during any specified period of time.
• It includes all currency and other liquid assets that can be easily converted to cash.
• The money supply is controlled by the central bank, which can increase or decrease it through a variety of tools, such as open market operations, interest rates, and reserve requirements.
• The money supply has a significant impact on the economy, as it affects interest rates, inflation, and economic growth.
• A central bank's goal is to manage the money supply in a way that promotes economic stability and growth.

The correct answer is Haryana.

Key Points 

• Gugga Naumi:
• It is the festival of Haryana celebrated in the lunar month of Bhadon.
• It is connected with snake worship and is observed in August-September.
• It is a festival in honour of Gugga Pir, which also falls in Bhadon.
• The Pir's devotees paint his image on the wall in turmeric, also paint a snake in black, right in front of it, and then perform the ritual of worship.
• People also pour buttermilk into the holes of snakes.
• Sweet Sevian is the special dish of the festival.

Additional Information

• Festivals of Maharashtra:
• Ganesh Chaturthi
• Gudi Padwa
• Holi
• Diwali
• Makar Sankranti
• Dasara
• Navratri
• Elephanta Festival
• Festivals of Uttar Pradesh:
• Kumbh Mela
• Bateshwar Fair
• Garhmukteshwar Mela
• Nauchandi Mela
• Taj Mahotsav
• Buddha Mahotsav
• Kajari Mahotsav
• Festivals of Rajasthan:
• Gangaur
• Teej
• Bundi Utsav
• Desert Festival
• Mewar Festival

The correct answer is equestrian.

Key Points

• Equestrian sports:-
• These are sports that use horses as a main part of the sport. This usually takes the form of the rider being on the horse's back, or the horses pulling some sort of horse-drawn vehicle.
• Equestrian sports are a popular form of recreation and competition around the world.
• There are many different types of equestrian sports, each with its own unique rules and challenges.
• Dressage:
• Dressage is a sport in which the horse and rider perform a series of movements that demonstrate the horse's training and obedience. (Hence it is associated with Equestrian)
• Dressage is often described as a dance between horse and rider.

Additional Information 

• Polo:-
• It is a team sport played on horseback, where the objective is to score goals against the opposing team by hitting a small ball into their goal with a long-handled mallet.
• Each team has four players, and the game is typically played on a grass field.
• Rugby:-
• It is a team sport played with an oval ball.
• The objective of the game is to score more points than the opposing team by grounding the ball over the opponent's try-line (scoring a try) or kicking the ball through the opponent's goalposts (scoring a conversion or penalty kick).
• Each team has 15 players on the field at a time, and the game is played on a grass field.
• Water polo:-
• It is a team sport played in water between two teams of seven players each.
• The objective of the game is to score goals by throwing the ball into the opposing team's goal, which is defended by a goalkeeper.

The correct answer is Padma Shri.

Key Points

• Shovana Narayan:-
• Shovana Narayan is a renowned Kathak dancer, who was born on 17 February 1949 in the state of West Bengal, India.
• Shovana Narayan has received several accolades for her contribution to the field of dance, including the Padma Shri and the Sangeet Natak Akademi Award.
• She has also been a part of several international dance festivals and has collaborated with renowned artists from across the world.​

Additional Information

• ​Padma Bhushan:
• The third-highest civilian honor in the Republic of India is the Padma Bhushan.
• It was established on January 2^nd, 1954.
• The Indian Prime Minister appoints the Padma Awards Committee each year.
• Between May 1 and September 15, submissions for the prize are accepted.
• Kalidas Samman:-
• It is a prestigious award given by the Government of Madhya Pradesh, India, to individuals who have made outstanding contributions to the field of art.
• The award is named after the ancient Indian poet and playwright Kalidasa, who is considered one of the greatest writers in the Sanskrit language.
• Kabir Puraskar
• It is a national award given by the Government of India to individuals who have made outstanding contributions to the promotion of communal, caste, and ethnic harmony.
• The award is named after the 15^th-century Indian poet and mystic Kabir, who was a strong advocate for social justice and religious tolerance.

The correct answer is Gold.

Key Points

• Saikhom Mirabai Chanu:-
• She is an Indian weightlifter who won the silver medal at the 2020 Tokyo Olympics in the women's 49 kg category.
• She is the first Indian woman to win a weightlifting medal at the Olympics.
• She also won the gold medal at the 2022 Commonwealth Games in the same category.

Additional Information

• 2022 Commonwealth Games:-
• Games were held in Birmingham, England, from July 28 to August 8, 2022.
• The Games featured over 6,500 athletes from 72 countries competing in 19 sports and 283 events.
• Australia topped the medal table with 67 gold medals, followed by England (57 gold medals) and Canada (26 gold medals).
• India finished fourth in the medal table with 22 gold medals.

The correct answer is 68.8%.

Key Points

• Census of India 2011:
• The 2011 census is the country's 15^th national census and the 7^th census after independence.
• The Census of the year 2011 was released on March 31, 2011, by the Union Home Secretary and R.G.I. of India.
• The slogan of Census 2011 was 'Our Census, Our Future'.
• Registrar General and Census Commissioner under whom Census 2011 was conducted - C. Chandra Mouli.
• It was conducted in two phases, house listing, and population enumeration.
• According to the Census of India 2011, 68.84% of India's population lived in rural areas.
• This means that over two-thirds of Indians lived in villages, hamlets, and agricultural regions.
• The rural population has been declining in recent years, but it still makes up a significant majority of India's population. Rural areas face a number of challenges, including poverty, lack of infrastructure, and limited access to education and healthcare.

Additional Information

• According to the 2011 census:
• The national literacy rate in the country is 74.04%.
• The literacy rate among males is 82.14%.
• The literacy rate among females is 65.46%.
• Kerala retained the top with a 93.91% literacy rate.
• Serchip in Mizoram is the most literate district in India with 98.23 %..
• Alirajpur in Madhya Pradesh is the least literate district in India.
• Lakshadweep is the most literate union territory in India with a 91.85% literacy rate.
• Dadra Nagar Haveli is the least literate union territory in India with a 76.24% literacy rate.

The correct answer is J S Verma Committee.

Key Points

• J S Verma Committee:-
• The committee to 'Operationalise the Suggestions to Teach Fundamental Duties to the Citizens of the Country' was J S Verma Committee.
• It was chaired by Justice J.S. Verma and was appointed by the Atal Bihari Vajpayee government in 1998.
• The committee made a number of recommendations on how to teach fundamental duties to citizens of all ages, including through school curricula, public awareness campaigns, and government programs.
• The J.S. Verma Committee's report also made a number of recommendations on other issues, such as reforming the police and the criminal justice system, and addressing the root causes of violence against women.
• These recommendations have not been fully implemented, but they continue to be relevant and important.

Additional Information

• L.P. Singh Committee:-
• It was a committee appointed by the Government of India in 1978 to examine the role and functioning of the Intelligence Bureau (IB), the Central Bureau of Investigation (CBI), and the Research and Analysis Wing (RAW).
• The committee was headed by L.P. Singh, a former Director General of Police of Uttar Pradesh.
• Abhijit Sen Committee:-
• It was a committee appointed by the Government of India in 2007 to study the impact of futures trading on agricultural commodity prices.
• The committee was headed by Abhijit Sen, a well-known economist and former member of the Planning Commission of India.
• Paul Appleby Committee:-
• It was a committee appointed by the Government of India in 1953 to study and recommend reforms in the Indian administrative system.
• The committee was headed by Paul H. Appleby, an American public administration expert.

The correct answer is Cochin International Airport Limited (CIAL), Kerala.

Key Points

• Cochin International Airport Limited (CIAL), Kerala:-
• It is the first airport in India to be built under a Public Private Partnership (PPP) model.
• It is also the first ever airport in the world to be fully powered by solar energy.
• CIAL is owned and operated by a public limited company called Cochin International Airport Limited, which has around 18,000 shareholders from 29 countries.
• The Government of Kerala holds a 33.36% stake in the company, making it the single largest investor.

Additional Information

• Kempe Gowda International Airport (KIA), Bangalore:-
• It is an international airport serving Bangalore, the capital of Karnataka, India.
• It is named after Kempe Gowda I, the founder of Bangalore.
• KIA is the third busiest airport in India by passenger traffic, air traffic movements, and domestic and total cargo handled.
• It is also the 29^th busiest airport in Asia. In the financial year 2021-22, the airport handled around 16.2 million passengers and 411,550 tonnes of cargo.
• Indira Gandhi International Airport (IGIA), Delhi:-
• It is the largest and busiest airport in India.
• It is named after Indira Gandhi, the former Prime Minister of India.
• Chhatrapati Shivaji Maharaj International Airport (CSMIA), Mumbai:-
• It is the second busiest airport in India in terms of total and international passenger traffic.
• It is located about 30 kilometers north of the city center.

The correct answer is 44.

Key Points

• National Sports and Adventure Awards:-
• They are presented annually by the President of India to recognize the achievements of athletes, coaches, and institutions in various sports disciplines.
• The awards were instituted in 1985 and are named after some of India's most legendary sportspersons, including Dhyan Chand, Arjuna, and Major Dhyan Chand.
• The awards are given to individuals and institutions who have made outstanding contributions to the development and promotion of sports in India.
• National Sports and Adventure Awards 2022:-
• These were held on November 30, 2022, at Rashtrapati Bhawan in New Delhi, India.
• A total of 44 prizes were presented to athletes, coaches, and institutions for their outstanding contributions to sports. (Hence option 2 is correct)
• The following awards were presented:
• Major Dhyan Chand Khel Ratna Award (1)
• Arjuna Award (25)
• Dronacharya Award (5)
• Dhyan Chand Award (3)
• Rashtriya Khel Protsahan Puruskar (5)
• Maulana Abul Kalam Azad Trophy (1)
• Tenzing Norgay National Adventure Award (12)

The correct answer is 1878.

Key Points

• Vernacular Press Act 1878:
• Lord Lytton passed the Vernacular Press Act in 1878 to restrict vernacular newspapers from publishing any seditious material.
• The Act aimed to control the writings of Indians against the British policies and could excite dissatisfaction in the Indians against the British government.
• According to the Vernacular Press Act, any magistrate or police commissioner had the power to order any printer or publisher of a newspaper to sign a bond promising not to publish a specific type of material and to seize any printed materials it deemed offensive.
• The Act required that all proof sheets of a paper’s contents be submitted to the police before publication.
• Thus, the Act allowed the British government to keep track of the vernacular newspapers writing against the Britishers and opposing their policies.
• When a newspaper’s writing was considered “seditious”, the newspaper was first warned and had to face serious consequences the next time.

The correct answer is Dhrupad.

Key Points

• Asghari Bai:-
• She was an Indian Dhrupad singer.
• She was one of the oldest and most respected exponents of this ancient form of Hindustani classical music.
• She was also a woman in a male-dominated field, which made her achievements even more remarkable.
• Asgari Bai was known for her powerful and expressive voice, as well as her deep understanding of the Dhrupad tradition.
• She was also a gifted teacher, and she mentored many young musicians over the years.
• In recognition of her contributions to music, Asgari Bai was awarded numerous honors and awards, including the Padma Shri, the Tansen Samman, and the Shikhar Samman.
• She was also featured in a documentary film, Asgari Bai (1998), which explores her life and work.
• Dhrupad:-
• It is a form of Hindustani classical music that originated in North India.
• It is one of the oldest and most prestigious forms of Indian classical music, and is characterized by its slow tempo, complex rhythms, and intricate vocal ornamentation.

Additional Information

• Carnatic music:-
• It is a form of Indian classical music that originated in South India.
• It is characterized by its complex rhythms and melodies, based on the classical Indian frameworks of talas and ragas.
• Ghazal:-
• It is a form of lyric poetry that originated in the Arabic world in the 7^th century.
• It is characterized by its unique rhyme scheme and thematic structure.

The correct answer is net factor income from abroad

Key Points

• Gross National Product at Market Price:-
• It is the total market value of all final goods and services produced by a country's residents in a given period, regardless of where they are located.
• GNP at MP less net factor income from abroad gives us GDP.
• Formula for it is GNP at MP = GDP at MP + Net factor income from abroad

Additional Information

• GDP:-
• It stands for Gross Domestic Product.
• It is the total monetary value of all the finished goods and services produced within a country's borders in a specific time period.
• It is one of the most important indicators of a country's economic health.
• Subsidies:-
• A subsidy is a financial benefit given by a government to a producer or consumer of a good or service.
• Subsidies can be direct or indirect. Direct subsidies are payments made to the producer or consumer, while indirect subsidies are tax breaks or other benefits that reduce the cost of production or consumption.
• Indirect tax:-
• It is a tax that is levied on the consumption of goods and services.
• It is not directly levied on the income of a person.

The correct answer is GNP at market prices - NNP at factor cost - NNP at market prices - GNP at factor cost

Key Points

• GNP at market prices - NNP at factor cost - NNP at market prices - GNP at factor cost is not correct.
• Gross National Product:-
• It is the total market value of all final goods and services produced in a country in a given period of time, regardless of the nationality of the owners of the factors of production.
• Net National Product:-
• It is the GNP minus depreciation, which is the consumption of fixed capital.
• Factor cost:-
• It refers to the cost of the factors of production, such as labor, land, and capital.
• Market price:-
• It refers to the price at which goods and services are sold in the market.
• The expression GNP at market prices - NNP at factor cost is not correct, because GNP is already measured at market prices. Similarly, the expression NNP at market prices - GNP at factor cost is incorrect because NNP is already measured at factor cost.
• A correct expression for the difference between GNP at market prices and NNP at factor cost is: GNP at market prices - NNP at factor cost = Net indirect taxes.

The correct answer is $1 / 2 m \sqrt{h / \pi}$

Key Points

Concept:

Heisenberg’s Uncertainty Principle:

• W Heisenberg a German physicist in 1927, stated the uncertainty principle which is the consequence of dual behavior of matter and radiation.
• It states that it is impossible to determine simultaneously, the exact position and exact momentum (or velocity) of an electron.

According to Heisenberg’s Uncertainty Principle

${\rm{Δ }}x \times {\rm{Δ }}P; \ge \frac{h}{{4;\pi ;}}$

Where, Δx = Uncertainty in position, ΔP = Uncertainty in momentum, h = Plank’s constant

ΔP = m Δv

Where, ΔP = Uncertainty in momentum, m = mass of particle, Δv = Uncertainty in velocity.

Calculation:

Given: Δx = m Δv

According to Heisenberg’s Uncertainty Principle

${\rm{Δ }}x \times {\rm{Δ }}P; \ge \frac{h}{{4;\pi ;}}$

ΔP = m Δv

${\rm{Δ }}x \times {\rm{mΔ }}v; \ge \frac{h}{{4;\pi ;}}$

${\rm{mΔ }}v \times {\rm{mΔ }}v; \ge \frac{h}{{4;\pi ;}}$

${m^2}{\rm{\Delta }}{v2} = \frac{h}{{4\pi }}$

${\rm{\Delta }}v = \sqrt {\frac{h}{{4\pi }}} \times \frac{1}{m}$

$\Delta v =\frac{1}{{2;m}}\sqrt {\frac{h}{\pi }}$

The correct answer is Kashmir.

Key Points

• Rajatarangini:-
• It is a metrical legendary and historical chronicle of the north-western part of India, particularly the kings of Kashmir.
• It was written in Sanskrit by Kashmiri historian Kalhana in the 12^th century CE.
• It is about the history of the state of Jammu and Kashmir, written in the 12^th century CE.
• The work consists of 7826 verses, which are divided between eight books called tarangas ("waves").
• The Rajatarangini provides the earliest source on Kashmir that can be labeled as a "historical" text on this region.
• Although inaccurate in its chronology, the book still provides an valuable source of information about early Kashmir and its neighbors in the north western parts of the Indian subcontinent, and has been widely referenced by later historians and ethnographers.

The correct answer is Odisha and West Bengal.

Key Points

• Chhau dance:-
• It is a popular folk dance form that is performed in the states of Odisha and West Bengal.
• It is a versatile dance form that represents folk culture through songs, stories, and dance movements.
• The dance is usually performed in groups, with both male and female dancers. The dancers wear traditional costumes, which usually include a blouse, a skirt, and a sari.
• Chhau dance is often performed at festivals and other special occasions.
• The songs and stories that are performed during the dance are often about love, adventure, or religious themes.
• The dance movements are usually simple and popular, and they are often accompanied by traditional folk instruments such as the dhol and the harmonium.
• Examples of Chatu dance performances:
• Odisha: The Puri Chhau Utsav is a popular annual festival that features Chatu dance performances from all over the state.
• West Bengal: The Purulia Chhau dance is a UNESCO World Heritage Site that incorporates Chatu dance elements.

The correct answer is Gori Ganga.

Key Points

• Gori Ganga:-
• Gori Ganga is a river in the Munsiari tehsil of the Pithoragarh District, part of the state of Uttarakhand in northern India.
• Its principal source is the Milam Glacier, just northeast of Nanda Devi along with the Glaciers of the Ralam River, and the Pyunshani and Uttari & Dakshini Balati Glaciers that lie on the western face of the Panchachuli Peaks.
• The Gori Ganga flows through the Nanda Devi Sanctuary, a UNESCO World Heritage Site.
• It is known for its scenic beauty and pristine waters. The river is also a popular destination for whitewater rafting and kayaking.
• The Gori Ganga joins the Kali River at Jauljibi, after flowing for a distance of about 104 kilometers.

Additional Information

• Sutlej:
• The Sutlej is the easternmost of the five major rivers of the Punjab region.
• It rises in the Himalayas in Tibet and flows through India and Pakistan before joining the Indus River.
• The Sutlej is a major source of irrigation water for both countries.
• Ganges:
• The Ganges is the most sacred river in Hinduism and is considered to be a goddess.
• It rises in the Himalayas in Uttarakhand and flows through several Indian states before draining into the Bay of Bengal.
• The Ganges is a major source of drinking water and irrigation water for millions of people.
• Yamuna:
• The Yamuna is the largest tributary of the Ganges.
• It rises in the Himalayas in Uttarakhand and flows through several Indian states before joining the Ganges at Allahabad.
• The Yamuna is a major source of drinking water and irrigation water for millions of people.

The correct answer is Incentive to produce efficiently.

Key Points

• Foreign Competition:-
• It can be a powerful incentive for domestic firms to produce more efficiently.
• In order to compete with foreign firms, domestic firms must find ways to lower their costs and produce higher quality goods and services.
• This can lead to increased innovation, investment in new technologies, and improved management practices.

Additional Information

• No requirement to develop new products: Foreign competition can actually encourage domestic firms to develop new products in order to stay ahead of the competition.
• Expansion of foreign market: Foreign competition can make it more difficult for domestic firms to expand into foreign markets.
• Saving of foreign exchange reserves: Foreign competition can lead to a decrease in foreign exchange reserves, as domestic firms import more goods and services from foreign countries.

The correct answer is Mitochondria

Key Points

• Mitochondria:-
• Mitochondria is is a double-layered cell organelle, in which the outer layer is porous and the inner layer is folded upon itself is known to be ''cristae''
• The number of mitochondria in a single cell may be up to 50 to 5000.
• It can make copies of themselves.
• The inner lumen of mitochondria contains ribosome phosphate particles and DNA molecules.
• It has the potential to synthesize its own protein and oxidation of carbohydrates and fats are taken place with the help of enzymes in mitochondria.
• This energy is stored in the form of ATP ( Adenosine Triphosphate ) so, these are known as the "Powerhouse of the cell".

Additional Information

• Golgi apparatus:-
• It is a membrane-bound organelle found in eukaryotic cells that is responsible for processing and packaging proteins and lipids for secretion or use within the cell.
• It is made up of a series of flattened, stacked pouches called cisternae.
• The Golgi apparatus is located near the endoplasmic reticulum and the nucleus.
• Vacuole:-
• It is a membrane-bound organelle found in eukaryotic cells that stores a variety of substances, including water, ions, nutrients, and waste products.
• Plant cells typically have one large central vacuole, while animal cells may have multiple smaller vacuoles.
• Vacuoles play a role in maintaining cell shape, regulating cell volume, and storing and releasing substances.
• Cytoplasm:-
• The jelly-like substance that fills the cell and contains all of the cell's organelles, except for the nucleus.
• The cytoplasm is made up of water, proteins, carbohydrates, lipids, and other molecules.
• It is the site of many important cellular processes, including metabolism, protein synthesis, and cell division.

The correct answer is i - d, ii - c, iii - a, iv - b.

Key Points

• Service tax:-
• It is a tax levied on the provision of services. It is a type of indirect tax.
• It is paid by the consumer but collected by the service provider.
• Service tax is a source of tax revenue for the government.
• Interest receipts:-
• These are earned when the government lends money to individuals or organizations.
• Interest receipts are a type of non-tax revenue, meaning that they are not generated from taxes.
• Sale of shares of PSUs:-
• It is the process of disinvesting the government's stake in public sector undertakings (PSUs).
• The proceeds from the sale of PSU shares are a type of capital receipt, meaning that they are not used to meet current expenses.
• Salaries and pension:-
• These are payments made to government employees and pensioners.
• Salaries and pension are a type of revenue expenditure, meaning that they are used to meet the current expenses of the government.

The correct answer is Double bond.

Key Points

• Alkenes:-
• These are hydrocarbons that contain at least one carbon-carbon double bond.
• The general formula for alkenes is C_nH_2n, where n is the number of carbon atoms in the molecule.
• The carbon-carbon double bond in alkenes is formed by the overlap of one sigma bond and one pi bond.
• The sigma bond is formed by the overlap of two hybridized sp2 orbitals from each carbon atom.
• The pi bond is formed by the overlap of two unhybridized p orbitals from each carbon atom.
• The pi bond is weaker than the sigma bond, and this makes alkenes more reactive than alkanes, which only contain single bonds between carbon atoms.

The correct answer is Tripura.

Key Points

• Manik Saha:-
• He is a dentist by profession and has been involved in politics for several years.
• He was elected to the Tripura Legislative Assembly in 2022 from the Town Bordowali constituency.
• Thus, Manik Saha took oath as the new Chief Minister of Tripura in March 2023.

Additional Information

• West Bengal​:-
• Mamata Banerjee of All India Trinamool Congress is the Chief Minister of West Bengal.
• She is the first woman to hold this position. She is known for her populist policies and her strong leadership.
• Assam:-
• Himanta Biswa Sarma of Bharatiya Janata Party is the Chief Minister of Assam.
• He is known for his administrative skills and his focus on development.
• Tamil Nadu:-
• M. K. Stalin of Dravida Munnetra Kazhagam is the Chief Minister of Tamil Nadu.
• He is known for his Dravidian ideology and his commitment to social justice.

The correct answer is Vasant Krishan Vaidya.

Key Points

• Vasant Krishan Vaidya:-
• He was a renowned Indian calligrapher.
• He was responsible for the calligraphy of the Hindi version of the original Constitution of India.
• He worked on the project for six months, using hundreds of pen nibs to create the intricate and beautiful calligraphy.
• He was born in Indore, Madhya Pradesh, and began learning calligraphy at a young age.
• He was known for his flowing and elegant calligraphy style, which he developed by studying the works of ancient Indian calligraphers.

Additional Information

• Prem Behari Narain Raizada:-
• He was an Indian calligrapher who is best known for writing the original Constitution of India in English.
• He was born in Delhi, India, into a family of calligraphers.
• His grandfather, Seth Govind Ram, was a renowned calligrapher who taught him the art of calligraphy.
• Nandalal Bose:-
• He was one of the pioneers of modern Indian art.
• He was born in Kharagpur, Bihar, India, into a Bengali family.
• He studied art at the Government Art College, Calcutta, where he was a student of Abanindranath Tagore.

Key Points

• Isoneph:-
• It refers to a line drawn through all points on a map that contain the same amount of cloud.
• It is a type of isoline, which is a line that connects points of equal value.
• Other common isolines include contour lines (elevation), isobars (atmospheric pressure), and isotherms (temperature).
• Isonephs are used by meteorologists and climatologists to visualize the distribution of cloud cover over a region.
• They can be used to identify areas of high and low cloud cover, as well as to track the movement of clouds over time.

Additional Information

• Isohels:-
• These are lines drawn on a map that connect points of equal sunshine duration.
• Isocheims:-
• These are lines drawn on a map that connect points of equal temperature.
• Isochalaz:-
• These are lines drawn on a map that connect points of equal hail size.

Given : 

Profit = 20%

Discount = 10%

Calculation : 

Now by making SP same,

⇒ 20 unit = 6500

⇒ 1 unit = 325

CP = 15 unit × 325 = 4875

∴ The correct answer is Rs.4875.

Calculation : 

By going through the table we can see that,

Maharashtra has the continuous increase in the number of students over the given years.

∴ The correct answer is Maharashtra.

Given : 

X, Y and Z can complete a piece of work in 20,12 and 28 days.

Formula Used : 

Work done = time × efficiency

Calculation : 

Total work = LCM(20,12, 28) = 420

Efficiency of X = 420/20 = 21

Efficiency of Y = 420/12 = 35

Efficiency of Z = 420/28 = 15

Time taken by (X + Y + Z) together = 420/(21 + 35 + 15) = 5.91 (approx)

∴ The correct answer is 6.

Formula Used : 

Surface area of cube = 6a2

Calculation : 

Decrease in side = 12% = 12/100 = 3/25

Original side length = 25

New side length = 22

Original Surface area = 6 × 25² = 3750

New Surface area = 6 × 22² = 2904

Decrease in surface area = 846/3750 × 100 = 22.56%

∴ The correct answer is 22.56%.

Given : 

Discount = 5 %

Profit = 14%

Calculation : 

Now by making the SP same,

Percentage Markup = 190/950 × 100 = 20%

∴ The correct answer is 20%.

Formula Used : 

H² = P² + B²

Calculation : 

⇒ OC² = OB² - BC²

⇒ OC² = 64 - 25 

⇒ OC² = 39

⇒ OC = √39 units

∴ The correct answer is √39 units.

Given : 

Discount = 25%

Calculation : 

⇒ 25% = 1/4

⇒ MP = 4 unit, SP = 3 unit

⇒ 1 unit = 22400

SP = 3 unit × 22400 = 67200

∴ The correct answer is 67200.

Given : 

$\left(y-\frac{1}{y}\right)=8$

Formula Used : 

(a - b)² = a² + b² - 2ab

Calculation : 

⇒ 64 = y² + 1/y² - 2

⇒ y² + 1/y² = 64 + 2

⇒ 66

∴ The correct answer is 66.

Given:

l + m + n = 0 

Formula Used:

If x + y + z = 0 then, x³ + y³ + z³ = 3xyz

Calculation:

⇒ (l²/mn × l/l + m²/nl × m/m + n²/lm × n/n)²

⇒ {(l³ + m³ + n³) / lmn}²

⇒ (3 lmn / lmn)²

⇒ 9

∴ The correct option is 1.

Alternate Method Let, l = 2, m = -1, n = -1, satisfing the given equation l + m + n = 0

Putting the value in the given expression

⇒ {4 + (-1/2) + (-1/2)}²

⇒ (4-1)² = 9

∴ The correct option is 1.

Given : 

13 chairs at ₹150 each.

15 chairs at ₹130 each.

Formula Used : 

Average = Sum of all observations/Number of observations.

Calculation : 

⇒ 13 × 150 + 15 × 130/(13 + 15)

⇒ (1950 + 1950)/28

⇒ 3900/28

⇒ 139.28 (approx)

∴ The correct answer is 139.

Calculation : 

⇒ 5θ -10° = 45° 

⇒ 5θ = 55° 

⇒ θ = 11° 

Now,

⇒ 5φ + 20° = 45° 

⇒ 5φ = 25° 

⇒ ϕ = 5° 

⇒  θ + φ = 11 + 5 = 16° 

∴ The correct answer is 16°.

Formula Used : 

H² = P² + B²

Calculation : 

⇒ OB² = 5² + 12²

⇒ OB² = 25 + 144

⇒ OB² = 169

⇒ OB = 13

∴ The correct answer is 13 cm.

Shortcut Trick

Successive multiplying factor = (90/100) × (105/100) × (125/100)

Final Amount = ₹1,60,000 × (9/10) × (21/20) × (5/4)

Final Amount = ₹1,60,000 × (945/800)

Final Amount = ₹200 × 945 = ₹1,89,000

Total Profit = Final Amount − Initial Capital = ₹1,89,000 − ₹1,60,000 = ₹29,000

∴ The correct answer is ₹29,000.

Alternate Method

Given:

Initial Capital (P) = ₹1,60,000

Loss in 1^st year = 10%

Profit in 2^nd year = 5%

Profit in 3^rd year = 25%

Formula Used:

Final Amount = P × (1 − L/100) × (1 + P₁/100) × (1 + P₂/100)

Total Profit = Final Amount − Initial Capital

Calculations:

⇒ Amount after 1^st year = 1,60,000 × (1 − 10/100)

⇒ Amount after 1^st year = 1,60,000 × (90/100) = ₹1,44,000

⇒ Amount after 2^nd year = 1,44,000 × (1 + 5/100)

⇒ Amount after 2^nd year = 1,44,000 × (105/100) = ₹1,51,200

⇒ Amount after 3^rd year = 1,51,200 × (1 + 25/100)

⇒ Amount after 3^rd year = 1,51,200 × (125/100) = ₹1,89,000

⇒ Total Profit = Final Amount − Initial Capital

⇒ Total Profit = 1,89,000 − 1,60,000 = ₹29,000

∴ The correct answer is ₹29,000.

Additional Information

Successive Percentage Change

When a value experiences continuous sequential changes, the net resultant value is determined by continuously multiplying the base amount with successive fractional factors: Final = Base × (1 ± r₁/100) × (1 ± r₂/100).

Equivalent Percentage Change

For two consecutive percentage changes of a% and b%, the combined overall percentage effect can be strictly derived from the direct formula: Net Change = (a + b + ab/100)%. In this formula, instances of decline or loss must be appropriately noted as negative quantities.

Compound Interest Analogy

The arithmetic principle of determining consecutive profits or losses computed on a continually updated principal is structurally identical to the framework of Compound Interest, wherein accrued amounts inherently form the foundation for the next interest period.

Formula Used : 

RT = (n - 1)100

Calculation : 

⇒ R × 21 = 8 × 100

⇒ R = 800/21 = 38%

And,

⇒ R × 25 = 11 × 100

⇒ R = 1100/25 = 44%

Difference = 44 - 38 = 6%

∴ The correct answer is 6%.

Formula Used : 

Length of arc = θ/360° × 2πr

Calculation : 

⇒ 22 = 84/360 × 2 × 22/7 × r

⇒ r = 360 × 7/(84 × 2)

⇒ r = 15 

∴ The correct answer is 15.

Calculation : 

sin θ cos θ = 2 cos3 $θ-\frac{1}{4} \cos θ$

⇒ sinθ = 2cos²θ - 1/4

⇒ sinθ = 2(1 - sin²θ) - 1/4

⇒ sinθ = {8(1 - sin2θ) - 1}/4

⇒ 4sinθ = 8 - 8sin²θ - 1

⇒ 8sin²θ + 4sinθ - 7 = 0

⇒ sinθ = {- 4 + √(4² + 4 × 8 × 7)}/16

⇒ (-4 + 4√15)/16

⇒ (√15 -1)/4

∴ The correct answer is (√15 -1)/4.

Calculation : 

⇒ (sin 45° + cos 45°)

⇒ 1/√2 + 1/√2

⇒ 2/√2

⇒ √2

∴ The correct answer is √2.

Given : 

Ratio of a chemical X and water is 15 ∶ 9.

48 litres of this mixture is replaced with water, the ratio becomes 11 ∶ 13.

Calculation : 

48 liters of water is taken out in which chemical X is 30 and water is 18.

⇒ 15x - 30/(9x - 18 + 48) = 11/13

⇒ 15x - 30/(9x + 30) = 11/13

⇒ 195x - 390 = 99x + 330

⇒ 96x = 720

⇒ x = 720/96 = 7.5

Quantity of water after replacement = 9 × 7.5 + 30 = 97.5

∴ The correct answer is 97.5.

Shortcut Trick

Ratio of investments = 1000 : 1200 : 1500 = 10 : 12 : 15.

Since the time period is identical, profit is distributed in the ratio of their investments.

Share of Q = [12 ÷ (10 + 12 + 15)] × Total Profit

Share of Q = (12 ÷ 37) × 666 = 12 × 18 = 216.

∴ The correct answer is ₹216.

Alternate Method

Given:

Investment of P = ₹1000

Investment of Q = ₹1200

Investment of R = ₹1500

Total profit = ₹666

Formula Used:

When the investment time is the same for all partners, Profit Ratio = Capital Ratio.

Investment and Profit Share Ratio

P 10 parts ₹1000

Q 12 parts ₹1200

R 15 parts ₹1500

Total Profit = ₹666 (37 parts)

Calculation:

⇒ Ratio of profits (P : Q : R) = 1000 : 1200 : 1500

⇒ Simplifying the ratio, we get 10 : 12 : 15

⇒ Sum of ratio parts = 10 + 12 + 15 = 37 parts

⇒ Value of 37 parts = ₹666

⇒ Value of 1 part = 666 ÷ 37 = ₹18

⇒ Profit share of Q = 12 parts

⇒ Share of Q = 12 × 18 = ₹216

∴ The correct answer is ₹216.

Additional Information

Different Time Periods

If partners invest for different durations, their profit is shared in the ratio of the product of their Capital and Time (C₁ × T₁ : C₂ × T₂).

Working & Sleeping Partners

A working partner receives a fixed salary or a specific percentage of the total profit for managing the business. The remaining profit is distributed among all partners according to their investment ratios.

Compound Partnership

When a partner withdraws or adds money during the year, their capital is broken into time segments. The equivalent capital is calculated as (Amount₁ × Months₁) + (Amount₂ × Months₂).

Given:

a + b + c = 20

a2 +b2+c2 = 262

Formula used:

(a + b + c)² = a² + b² + c² + 2 ab + 2 bc + 2 ca 

(a + b + c)² =  a2 + b2 + c2 + 2(ab + bc + ca)

Calculation:

As we know,

(a + b + c)2 =  a2 + b2 + c2 + 2(ab + bc + ca)

⇒ (20)² = 262 + 2(ab + bc + ca)

⇒ 400 = 262 + 2(ab + bc + ca)

⇒400 - 262 = 2(ab + bc + ca)

⇒138 = 2(ab + bc + ca)

⇒(ab + bc + ca) = 69

∴ The value of (ab + bc + ca) is 69.

Calculation : 

⇒ [13/3 + 10/3 × 9/5 × 4/15 × (3/2 + 4/3)]/[8/15]

⇒ [13/3 + 10 × 4/25 × (9 + 8/6)]/[8/15]

⇒ [13/3 + 40/25 × 17/6]/[8/15]

⇒ [13/3 + 136/30]/[8/15]

⇒ [130 + 136]/16

⇒ $16 \frac{5}{8}$

∴ The correct answer is  $16 \frac{5}{8}$.

Calculation : 

A = [(148 - 122)/122] × 100 = 21.31

B = [(166 - 135)/135] × 100 = 22.96

C = [(240 - 186)/186] × 100 = 29.03

D = [(220 - 170)/170] × 100 = 29.41

E = [(188 - 166)/166] × 100 = 13.25

∴ The correct answer is D.

Given:

In a triangle STU, V is a point on side ST and W is a point on side SU such that VWUT is a trapezium

VW : TU = 2 : 7

Concept used:

Thales theorem (Basic Proportionality Theorem)

If a line is drawn parallel to one side of a triangle intersecting the other two sides in distinct points,

then the other two sides are divided in the same ratio.

AP/PB = AQ/QC

Note:

If APQ and ABC are similar then,

Area of APQ/ Area of ABC = (PQ)² : (BC)²

and the side ratio will be,

PQ/BC = AP/AB = AQ/AC

Calculation:

According to question,

In the figure, VW : TU = 2 : 7 

As we know, SVW and STU both are similar then

SV/ST = SW/SU = VW/ TU = 2 : 7

So, we can say

SV = 2 unit

ST = 7 unit

⇒ST = SV + VT

⇒ 7 = 2 + VT

⇒ VT = 5 unit

According to Thales theorem,

⇒SV : VT = SW : WU = 2 : 5

Ratio of area of SVW and area of STU will be,

Area of SVW : Area of STU = (VW)² : (TU)²

⇒Area of SVW : Area of STU = 2² : 7²

⇒Area of SVW : Area of STU = 4 : 49

⇒Area of SVW = 4 units

⇒Area of STU = 49 units

So, 

Area of STU = Area of SVW + Area of VWUT

⇒Area of VWUT = Area of STU - Area of SVW

⇒Area of VWUT  = 49 - 4

⇒Area of VWUT = 45 unit

So, the ratio of area of trapezium VWUT and area of triangle STU will be,

⇒ Area of VWUT : Area of STU = 45 : 49

∴ The correct answer is 45:49.

Given : 

v = 9 km/hr

Time Upstream = 2 × Downstream

Formula Used :

Speed in Downstream = v + u

Speed in Upstream = v - u

Calculation : 

⇒ D/(v - u) = 2 × D/(v + u)

⇒ v + u = 2 × (v - u)

⇒ 9 + u = 2(9 - u)

⇒ 3u = 9

⇒ u = 3

∴ The correct answer is 3.

Calculation : 

⇒ 360° = 12960

⇒ 1° = 36

Annual Production of Maize = 95° × 36 = 3420

∴ The correct answer is 3420 tonnes.

The correct answer is 'additives'.

Key Points

• The correct word to complete the sentence is "additives."
• "Additives" refer to substances that are added to food items during processing or production to enhance their flavor, appearance, texture, or shelf life. These substances can include preservatives, flavor enhancers, colorants, and stabilizers.
• They are used to improve the overall quality and characteristics of food products.
• Thus, the correct answer is Option 1.

Correct Sentence: My cousin owns a shop of food additives.

The correct answer is 'have been given a pair'.

Key Points

• The underlined part in the given sentence is grammatically incorrect.
• The most appropriate option to substitute the underlined segment in the sentence is: "have been given a pair."
• The subject "newly admitted students" is plural (students), so the correct verb form that agrees with the plural subject is "have been given."
• The verb "have been given" is in the present perfect tense, indicating an action that began in the past and is still relevant in the present.
• Therefore, "have been given a pair" correctly matches the plural subject in both tense and agreement. 

Correct Sentence: The newly admitted students have been given a pair of uniforms by the management.

The correct answer is 'you will go to'.

Key Points

• The underlined part in the given sentence is grammatically incorrect.
• In the context of the question, "Are you sure you have go to drop her at the airport?" the most appropriate option among the provided choices is indeed "you will go to."
• While "you will go to" doesn't directly match the original sentence structure, it can be considered a suitable substitute to convey a future action (going to drop her at the airport). The original sentence structure appears to be incorrect, and among the options provided, "you will go to" is the closest in meaning to indicate a future action.
• Thus, the correct answer is Option 1.

Correct Sentence: Are you sure you will go to drop her at the airport?

The correct answer is 'Scrutinise'.

Key Points

• The most appropriate synonym of the given word 'Survey' is 'Scrutinise'.
• Survery: a study of the opinions, behaviour, etc. of a group of people. (व्‍यक्तियों के किसी समूह के विचारों, आचरण आदि का अध्ययन; सर्वेक्षण)
• Example: to carry out/conduct/do a survey...
• Scrutinise: to look at or examine something carefully. [(किसी वस्‍तु को) सावधानी से देखना या जाँचना]
• Example: The customs official scrutinized every page of my passport.

Correct Answer: Scrutinise.

Additional Information

• Let's look at the meaning of other words:
• Disregard: to pay no attention to. (उपेक्षा)
• Slothful: lazy, indolent, slothful mean not easily aroused to activity. (आलसी)
• Apathy: lack of feeling or emotion. (उदासीनता)

The correct answer is 'Gets in his teacher's hair'.

Key Points

• The most appropriate idiom for the underlined segment in the sentence is "gets in his teacher's hair."
• "Gets in his teacher's hair" means to cause trouble or annoyance to someone. In this context, it suggests that Rohit's mischievous behavior irritates or causes annoyance to his teachers.

Additional Information

• Let's look at the meaning of other words:
• "Puts his shoulders to the wheel": This idiom means to start working hard or putting effort into a task. It signifies dedication and hard work towards a particular goal or endeavor.
• "A storm in a tea cup": This idiom refers to a small issue or problem that is blown out of proportion, making it seem much more significant or serious than it actually is.
• "Leads up the garden path": This idiom means to deceive or mislead someone, often by giving them false hope or expectations, leading them into a situation that may not be as positive or truthful as it seems.

The correct answer is 'building up inside her'.

Key Points

• The most appropriate option to substitute the underlined segment in the given sentence is: building up inside her.
• This phrase "building up" means that the anger is increasing or intensifying within Pooja.
• It effectively communicates the idea that her anger is growing stronger gradually. The phrase "building up" indicates a gradual accumulation or increase in intensity, which fits the context of the sentence describing the growing anger inside Pooja.

Correct Sentence: Pooja could feel the anger building up inside her.

The correct answer is Option 2.

 

Key Points

• The definite article "the" is used for specific, known entities, or things previously mentioned.
• In the context of the given sentence, "the cold day today" implies a specific cold day that has already been mentioned, which is not the case.
• The indefinite article "a" is used for non-specific, singular countable nouns, indicating any instance of the thing being referred to.
• Therefore, the correct phrase should be "a cold day today."
• Thus, the grammatical error is in part 2 of the sentence.

Therefore, the correct answer is Option 2.

 

Correct Sentence: "Can you please pass me a sweater? It's going to be a cold day today."

 

Additional Information

• 1: "Can you please" – This part of the sentence is grammatically correct and does not require any changes.
• 3: "It's going to be" – This part of the sentence is grammatically correct and does not require any changes.
• 4: "pass me a sweater?" – This part of the sentence is grammatically correct and does not require any changes.
• No error – This would be the correct option if there were no mistakes in the sentence, but there is an error in part 2.