UPSC CSAT Mock Tests – Chapter 2: Mock Test 1 – Standard Level (80 MCQs)

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UPSC CSAT Mock Tests – Chapter 2: Mock Test 1 – Standard Level (80 MCQs) – 80 questions, subject: CSAT Mock Tests. Every question has the correct answer with a one-line explanation; tap "Show Answer". Free practice for TNPSC, UPSC, SSC, Bank and RRB exams – Shanmugam IAS Academy, Coimbatore.

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1.  

Passage 1

In many States, electricity for farm pumps is supplied free or at a flat rate. The policy was meant to protect small farmers from the cost of irrigation, and for some years it did. But when the price of pumping is zero, the farmer has no reason to stop pumping, and the water table falls a little every year. The deeper the water, the larger the pump needed to lift it, and the larger the pump, the more electricity it draws. Those who can afford deeper borewells keep their crops alive; those who cannot see their shallow wells run dry. A subsidy designed for the small farmer thus ends up favouring the large one. Metering the supply and paying the farmer a fixed cash support, which he keeps if he uses less power, would protect his income without rewarding waste.

Which of the following best expresses the central idea of the passage?

Correct Answer: A [Free farm power, meant for small farmers, encourages over-pumping that hurts them most, and support can be redesigned to reward saving.]

Explanation:

the passage traces how free power leads to falling water tables that hurt small farmers, and ends with a redesign that rewards saving.

2.  

Which of the following can be inferred from the passage?

Correct Answer: D [The cost of reaching groundwater rises as the water table falls.]

Explanation:

deeper water needs a larger pump, and a larger pump draws more electricity, so the cost rises as the water table falls.

3.  

The proposal in the last sentence of the passage assumes that:

Correct Answer: A [farmers will respond to a reward for using less power]

Explanation:

the proposal works only if letting farmers keep unspent support makes them pump less.

4.  

What is the smallest number greater than 7 which, when divided by 12, 15 and 20, leaves a remainder of 7 in each case?

Correct Answer: B [67]

Explanation:

the LCM of 12, 15 and 20 is 60, and 60 + 7 = 67.

5.  

What is the unit digit of 13⁴⁵?

Correct Answer: B [3]

Explanation:

the unit digit of 13ⁿ is that of 3ⁿ, which repeats in the cycle 3, 9, 7, 1. Since 45 = 4 × 11 + 1, the unit digit is the first in the cycle, 3.

6.  

When the product 19 × 31 × 43 is divided by 8, what is left over?

Correct Answer: D [7]

Explanation:

remainders 3, 7 and 3 multiply to 63, leaving 7; indeed 25,327 = 8 × 3,165 + 7.

7.  

Statements:

All painters are artists.

Some artists are teachers.

No teacher is a dancer.

Conclusions:

I. Some painters are teachers.

II. Some artists are not dancers.

Which of the following is correct?

Correct Answer: B [Only conclusion II follows]

Explanation:

some artists are teachers, and no teacher is a dancer, so those artists are not dancers. Conclusion I does not follow.

8.  

Ravi will get the scholarship only if he scores above 90 per cent and attends at least 75 per cent of his classes. Ravi got the scholarship.

Which of the following must be true?

I. Ravi scored above 90 per cent.

II. Ravi attended at least 75 per cent of his classes.

Correct Answer: C [Both I and II]

Explanation:

"A only if B and C" means that if A happened, both B and C hold; Ravi got the scholarship, so both conditions were met.

9.  

Passage 2

Glaciers are often called the water towers of Asia, but the image can mislead. A tower stores water and releases it at will; a glacier releases more water when it is melting fast. For some decades, therefore, a warming climate may increase the flow of glacier-fed rivers. The danger lies later, when the glacier has shrunk so much that its summer melt falls. A region that plans for today's flow may find itself short of water just when its population is largest.

Which of the following is the most logical inference from the passage?

Correct Answer: D [A rise in river flow today can hide a long-term fall in the water that glaciers supply.]

Explanation:

faster melting raises flow now, but a shrunken glacier will later give less; planning on today's flow is risky.

10.  

If the six-digit number 54k372 is divisible by 9, what is the digit k?

Correct Answer: A [6]

Explanation:

the digit sum is 21 + k; it is divisible by 9 only when k = 6, giving 27.

11.  

How many factors (divisors) does 360 have, including 1 and 360?

Correct Answer: C [24]

Explanation:

360 = 2³ × 3² × 5, so the number of factors is (3 + 1)(2 + 1)(1 + 1) = 24.

12.  

Passage 3

Every time an antibiotic is used, the few bacteria that happen to survive it are left with less competition. If the course is cut short, or the drug is given for a viral fever it cannot cure, the survivors multiply and pass on their resistance. The problem is therefore not only one of medicine but also of habit: a drug that works for everyone is used carelessly by each. No single patient sees the harm, because resistance builds up across millions of doses. That is why rules on prescription and sale matter as much as the discovery of new drugs.

Which of the following is a valid inference from the passage?

Correct Answer: A [The harm from careless use of antibiotics falls on society as a whole rather than on any one patient.]

Explanation:

resistance builds up across millions of doses, so no single patient sees the harm; the cost is shared by all.

13.  

Which of the following is the most suitable title for the passage?

Correct Answer: D [Careless Use and the Rise of Drug Resistance]

Explanation:

the passage explains how careless use spreads resistance and why rules are needed.

14.  

What is the term after 72 in 1, 2, 6, 12, 36, 72, …?

Correct Answer: D [216]

Explanation:

the factors alternate ×2 and ×3; 72 came from doubling, so 72 × 3 = 216.

15.  

What comes next in the letter series A, C, F, J, O, …?

Correct Answer: D [U]

Explanation:

the gaps are 2, 3, 4, 5, so the next gap is 6; O (15) + 6 = U (21).

16.  

A number is first increased by 20 per cent and the result is then decreased by 20 per cent. What is the net change?

Correct Answer: D [4 per cent decrease]

Explanation:

1.2 × 0.8 = 0.96, a fall of 4 per cent.

17.  

In an election between two candidates, the winner got 58 per cent of the valid votes and won by 4,800 votes. If 4 per cent of the votes polled were invalid, how many votes were polled?

Correct Answer: C [31250]

Explanation:

the margin is 58 − 42 = 16 per cent of valid votes, so valid votes = 4,800 ÷ 0.16 = 30,000; votes polled = 30,000 ÷ 0.96 = 31,250.

18.  

Passage 4

Mangroves grow where few other trees can: in salt water that floods and drains twice a day. Their tangled roots slow down waves and trap silt, so a belt of mangroves can reduce the force of a storm surge before it reaches a village. The same roots shelter young fish and crabs, and many coastal families depend on that catch. Yet mangroves have long been treated as wasteland, cleared for shrimp ponds, ports and housing. The loss is seldom counted, because the services a mangrove gives – protection, nursery grounds, carbon stored in its mud – are not sold in any market. A ledger that records only what is sold will always find it profitable to cut them down.

According to the passage, mangroves are cleared mainly because:

Correct Answer: C [the benefits they provide are not given a money value]

Explanation:

their services are not sold in any market, so an account of sales finds it profitable to cut them down.

19.  

Which of the following is the most logical corollary of the passage?

Correct Answer: A [Coastal planning should count the value of the services that mangroves provide.]

Explanation:

if mangroves are lost because their services are not counted, counting those services is the logical next step.

20.  

In the passage, the word "ledger" refers to:

Correct Answer: D [a way of keeping accounts that decides what counts as gain or loss]

Explanation:

a ledger is an account book; here it stands for an accounting that records only what is sold.

21.  

Data set 1

The table shows the production of three crops in a district (in thousand tonnes).

Year Rice Wheat Pulses
2021 240 180 60
2022 260 175 66
2023 286 190 72
2024 300 210 75

In which year was the percentage increase in rice production over the previous year the highest?

Correct Answer: B [2023]

Explanation:

in 2023 the rise was 26 on 260, exactly 10 per cent – the highest.

22.  

In 2024, pulses formed approximately what percentage of the total production of the three crops?

Correct Answer: B [About 13 per cent]

Explanation:

total production in 2024 = 300 + 210 + 75 = 585; 75 ÷ 585 ≈ 12.8 per cent, about 13 per cent.

23.  

What was the average annual production of wheat over the four years?

Correct Answer: B [188.75 thousand tonnes]

Explanation:

(180 + 175 + 190 + 210) ÷ 4 = 755 ÷ 4 = 188.75 thousand tonnes.

24.  

Passage 5

Funds given to village panchayats are often tied to particular schemes, each with its own guidelines. A panchayat that needs a culvert may receive money only for a community hall. Untied grants let the village decide what it needs most, and the people who live with the result are often the best judges of it. Untied money can be misused, of course, but so can tied money; the difference is that with untied funds the village can at least be held responsible for its own choices.

The author favours untied grants mainly because they:

Correct Answer: D [let local needs decide spending and make the panchayat answerable for its choices]

Explanation:

the passage says villagers are the best judges of their needs and can be held responsible for their own choices.

25.  

Goods are priced 30 per cent over cost, and buyers get 10 per cent off that price. What profit per cent does the seller make?

Correct Answer: B [17 per cent]

Explanation:

1.30 × 0.90 = 1.17 times the cost, a profit of 17 per cent.

26.  

By selling an article for ₹1,140, a trader loses 5 per cent. At what price should he sell it to gain 10 per cent?

Correct Answer: D [₹1,320]

Explanation:

cost = 1,140 ÷ 0.95 = ₹1,200; for a 10 per cent gain, price = 1,200 × 1.1 = ₹1,320.

27.  

Reasoning set 1

Six friends P, Q, R, S, T and U sit in a row facing north.

– R sits at one of the ends of the row.

– Q sits third to the right of R.

– U sits between Q and S, next to both.

– T is an immediate neighbour of R.

Who sits at the right end of the row?

Correct Answer: C [S]

Explanation:

R must be at the left end (Q cannot be third to the right of a person at the right end); the order is R, T, P, Q, U, S, so S is at the right end.

28.  

Who sits between T and Q?

Correct Answer: A [P]

Explanation:

in the order R, T, P, Q, U, S, P is between T and Q.

29.  

How many persons sit between R and U?

Correct Answer: C [Three]

Explanation:

T, P and Q sit between R (first) and U (fifth).

30.  

Passage 6

Cities draw workers because they pay more than villages, but they rarely plan for the people they draw. A construction worker who moves to the city for wages finds that the cheapest room near work is in a settlement that has no title, no sewer and no address. Without an address he cannot easily open a bank account or move his ration card, and so he remains a stranger in the city whose buildings he raises. Planning that counts only land and buildings, and not the workers who build them, creates the very slums it later tries to remove.

The main concern of the author is that:

Correct Answer: A [city planning ignores the housing and document needs of migrant workers]

Explanation:

the passage shows how planning that ignores workers leaves them without address, services or documents.

31.  

The phrase "a stranger in the city whose buildings he raises" suggests that the worker:

Correct Answer: D [contributes to the city but is shut out from its services]

Explanation:

he builds the city, yet without an address he cannot open a bank account or move his ration card.

32.  

₹7,200 is divided among A, B and C in the ratio 2 : 3 : 4. By how much does C's share exceed A's share?

Correct Answer: B [₹1,600]

Explanation:

one part = 7,200 ÷ 9 = ₹800; C − A = (4 − 2) × 800 = ₹1,600.

33.  

A 60-litre mixture contains milk and water in the ratio 3 : 1. How much water must be added to make the ratio 3 : 2?

Correct Answer: B [15 litres]

Explanation:

the mixture has 45 litres of milk and 15 of water; for 3 : 2, water must be 30 litres, so 15 litres must be added.

34.  

Meena cycles 9 km towards the south, turns right and cycles 7 km, and then turns left and cycles 15 km. Where is she now with respect to her starting point?

Correct Answer: A [25 km to the south-west]

Explanation:

She ends 7 km west and 24 km south of the start: √(7² + 24²) = 25 km, to the south-west.

35.  

What is the angle between the hour hand and the minute hand of a clock at 3:40?

Correct Answer: B [130°]

Explanation:

angle = |30 × 3 − 5.5 × 40| = |90 − 220| = 130°.

36.  

Passage 7

When a State gave free bicycles to all girls entering secondary school, the effect was most visible in villages far from the nearest high school. For a girl living next door to a school, a bicycle changed little; for one who lived several kilometres away, it made the difference between continuing and stopping. A benefit given to all thus had its largest effect on those for whom distance was the barrier.

Which of the following can be inferred from the passage?

Correct Answer: D [Distance from school was an important reason why some girls stopped their studies.]

Explanation:

the bicycle decided whether a distant girl continued, so distance had been a barrier.

37.  

The average of 11 numbers is 36. The average of the first six numbers is 32 and that of the last six is 40. What is the sixth number?

Correct Answer: B [36]

Explanation:

the sixth number is counted in both groups: 6 × 32 + 6 × 40 − 11 × 36 = 192 + 240 − 396 = 36.

38.  

The average age of 30 students in a class is 14 years. When the teacher's age is included, the average rises by 1 year. What is the teacher's age?

Correct Answer: B [45 years]

Explanation:

total of 31 persons = 31 × 15 = 465; students = 30 × 14 = 420; teacher = 45 years.

39.  

Passage 8

A public office that is never asked how it is doing has no reason to improve. Private firms learn from customers who walk away; a citizen who needs a caste certificate or a land record has nowhere else to go. For such services, the citizen's voice must take the place of the customer's choice. Simple tools help: a fixed time limit for each service, a receipt that shows the date of application, and a published count of how many applications were cleared on time. None of these needs new technology. What they need is a willingness to be measured – and the measurement must be made public, because a figure that only the office sees can be quietly forgotten.

Which of the following best captures the crux of the passage?

Correct Answer: A [Where citizens cannot choose another provider, public measurement of service delivery is needed to make offices improve.]

Explanation:

citizens have nowhere else to go, so their voice – through public measures of timeliness – must push offices to improve.

40.  

According to the passage, why does a private firm have a reason to improve?

Correct Answer: D [Its customers can go elsewhere.]

Explanation:

firms learn from customers who walk away.

41.  

The author assumes that:

Correct Answer: A [an office will act to avoid public evidence of poor performance]

Explanation:

the case for publishing the count rests on the belief that an office will improve when its record is public.

42.  

You are the officer in charge of relief after a flood. Local leaders insist that relief should first reach the villages of their supporters. What is the most appropriate course of action?

Correct Answer: D [Distribute relief according to assessed need, explain the criteria publicly and keep a record of decisions.]

Explanation:

need-based distribution with open criteria and records is fair, quick and defensible.

43.  

The present ages of a father and his son are in the ratio 7 : 2. After 10 years, the ratio will be 9 : 4. What is the father's present age?

Correct Answer: B [35 years]

Explanation:

let the ages be 7x and 2x; (7x + 10) ÷ (2x + 10) = 9 ÷ 4 gives x = 5, so the father is 35.

44.  

Pens cost ₹12 each and notebooks ₹30 each. Ravi spends exactly ₹246 on pens and notebooks, buying at least one of each. In how many different ways can he do this?

Correct Answer: C [4]

Explanation:

12p + 30n = 246 gives 2p + 5n = 41; n must be odd: n = 1, 3, 5, 7 with p = 18, 13, 8, 3 – four ways.

45.  

Passage 9

It is fashionable to say that science has "proved" this or that. Science does not prove; it tests. A good theory is one that has survived many attempts to show it wrong and remains open to the next attempt. When scientists speak of certainty, they speak loosely; when the public hears of certainty, it hears finality. Much of the distrust of science begins in that gap.

According to the author, public distrust of science arises partly because:

Correct Answer: A [the public hears loosely stated certainty as final truth, while science stays open to revision]

Explanation:

scientists speak of certainty loosely, the public hears finality, and distrust begins in that gap.

46.  

Statement: "Use public transport and save fuel." – an advertisement issued by a city transport corporation.

Assumptions:

I. Some people will respond to the advertisement.

II. Public transport uses less fuel for each traveller than private vehicles.

Which of the following is correct?

Correct Answer: C [Both assumptions I and II are implicit]

Explanation:

the advertisement is issued expecting a response (I), and its message holds only if public transport saves fuel per traveller (II).

47.  

Argument: "Students who take notes by hand remember more than those who type them, so schools should ban laptops in class." Which of the following, if true, most weakens the argument?

Correct Answer: D [In the studies cited, the students who wrote by hand had also read the chapter beforehand more often than those who typed.]

Explanation:

if hand-writers had prepared more, the better memory may come from preparation, not from writing by hand.

48.  

A sum of money doubles itself in 8 years at simple interest. In how many years will it become four times itself at the same rate?

Correct Answer: B [24 years]

Explanation:

doubling in 8 years means 100 per cent interest in 8 years, or 12.5 per cent a year; four times needs 300 per cent, which takes 24 years.

49.  

What is the compound interest on ₹12,000 for 3 years at 5 per cent a year, compounded annually?

Correct Answer: C [₹1,891.50]

Explanation:

amount = 12,000 × 1.05³ = 12,000 × 1.157625 = ₹13,891.50, so the interest is ₹1,891.50.

50.  

A alone needs 15 days for a task and B alone 20 days. After both work for 6 days, A quits. How many more days does B need to complete the task?

Correct Answer: C [6]

Explanation:

together they do 7/60 a day; 6 days give 42/60, and B does the remaining 18/60 in 6 days.

51.  

Passage 10

Millets need far less water than rice and can grow on poor soils, yet for decades their share of the plate shrank. Cheap rice and wheat through the ration system, the ease of cooking them, and the idea that millets were food for the poor all played a part. Bringing millets back is not only a matter of telling people they are healthy. Farmers will grow them only if they can sell them at a fair price, and families will eat them only if they are easy to buy and cook. Without both, campaigns change slogans, not diets.

Which of the following is the most logical inference from the passage?

Correct Answer: A [Health information alone is unlikely to raise the eating of millets.]

Explanation:

the passage says bringing millets back is not only a matter of telling people they are healthy; price and convenience also matter.

52.  

The passage assumes that:

Correct Answer: A [farmers decide what to grow partly by what they can sell]

Explanation:

the claim that farmers will grow millets only at a fair price rests on this assumption.

53.  

In a certain code, TABLE is written as FMCBU. How is CHAIR written in that code?

Correct Answer: A [SJBID]

Explanation:

the word is reversed (ELBAT) and each letter moved one step forward (FMCBU); CHAIR reversed is RIAHC, which becomes SJBID.

54.  

Find the odd one out: 121, 169, 289, 323

Correct Answer: D [323]

Explanation:

323 = 17 × 19 is not a perfect square; the others are squares of 11, 13 and 17.

55.  

Passage 11

Rules are written for the usual case; officers meet the unusual one. A rule that forbids any change to a deadline may be fair to a thousand applicants and cruel to the one whose papers were lost in a flood. Discretion lets an officer do justice in such a case. But discretion without a record is an invitation to favour. The answer is not to remove discretion but to require that every exception be written down with its reason, so that the next officer, and the public, can see whether like cases were treated alike.

Which of the following best captures the crux of the passage?

Correct Answer: C [Discretion is useful but should be used openly, with the reasons recorded.]

Explanation:

discretion does justice in unusual cases; a written reason guards against favour.

56.  

According to the passage, recording the reasons for exceptions helps mainly to:

Correct Answer: D [check whether similar cases are treated alike]

Explanation:

the record lets the next officer and the public see whether like cases were treated alike.

57.  

Pipes A and B can fill a tank in 24 minutes and 40 minutes respectively, and pipe C can empty the full tank in 20 minutes. If all three are opened together on an empty tank, in how many minutes will it be full?

Correct Answer: D [60 minutes]

Explanation:

net rate = 1/24 + 1/40 − 1/20 = (5 + 3 − 6)/120 = 1/60 of the tank a minute, so it fills in 60 minutes.

58.  

A train 180 m long crosses a platform 120 m long in 15 seconds. What is the speed of the train?

Correct Answer: C [72 km/h]

Explanation:

distance = 180 + 120 = 300 m in 15 s = 20 m/s = 20 × 18/5 = 72 km/h.

59.  

A man travels to his office at 30 km/h and returns along the same road at 20 km/h. What is his average speed for the whole journey?

Correct Answer: A [24 km/h]

Explanation:

for equal distances, average speed = 2 × 30 × 20 ÷ (30 + 20) = 24 km/h. Check: for 60 km each way, 2 h + 3 h = 5 h for 120 km.

60.  

Passage 12

A family that keeps its savings in a box at home may feel safe, but when prices rise by six per cent a year, the money in the box buys six per cent less each year. The loss is invisible because the number of notes does not change. Saving, therefore, is not merely putting money aside; it is putting it where its value is protected.

The passage implies that:

Correct Answer: C [savings kept as cash lose purchasing power when prices rise]

Explanation:

the notes stay the same, but they buy less when prices rise.

61.  

Going with the current, a boat travels 36 km in 3 hours; against it, 24 km takes 4 hours. Find the speed of the current.

Correct Answer: B [3 km/h]

Explanation:

downstream 12, upstream 6 km/h; the current is half the difference: (12 − 6) ÷ 2 = 3 km/h.

62.  

The perimeter of a rectangle is 46 cm and its diagonal is 17 cm. What is its area?

Correct Answer: B [120 cm²]

Explanation:

length + breadth = 23 and length² + breadth² = 289; 2 × length × breadth = 529 − 289 = 240, so the area is 120 cm² (sides 15 and 8).

63.  

A circular park has a radius of 35 m. A path 7 m wide runs round it on the outside. What is the area of the path? (Take π = 22/7.)

Correct Answer: B [1,694 m²]

Explanation:

path area = 22/7 × (42² − 35²) = 22/7 × 539 = 1,694 m².

64.  

Passage 13

The spread of digital payments has made small transactions faster and cheaper to record. A vendor who once kept no accounts now has a record of every sale, and that record can help him get a loan. But the same record can shut out those who are not online. An elderly pensioner without a smartphone, or a village where the network fails, still needs cash. A payment system is inclusive only if it works for the person with the least access, not merely for the average user.

Which of the following best reflects the author's view?

Correct Answer: D [Digital payments bring real gains, but cash must remain usable for those without access.]

Explanation:

the author values the gains and also insists that the system must work for those with the least access.

65.  

The last sentence of the passage implies that:

Correct Answer: A [a payment system should be judged by how well it serves those with the least access]

Explanation:

the test of inclusion is whether the system works for the person with the least access.

66.  

Statements:

No metal is a liquid.

Some liquids are fuels.

All fuels are useful.

Conclusions:

I. Some useful things are liquids.

II. Some fuels are not metals.

Which of the following is correct?

Correct Answer: C [Both conclusions I and II follow]

Explanation:

some liquids are fuels and all fuels are useful, so some liquids are useful (I); those fuels that are liquids cannot be metals, so some fuels are not metals (II).

67.  

Of five boxes A, B, C, D and E, A is heavier than B but lighter than C. D is heavier than C. E is lighter than B. Which box is the second heaviest?

Correct Answer: C [C]

Explanation:

the order is D > C > A > B > E, so C is the second heaviest.

68.  

Pointing to a woman, Arun said, "Her mother is the only daughter of my mother's father." How is the woman related to Arun?

Correct Answer: C [Sister]

Explanation:

the only daughter of Arun's mother's father is Arun's mother; the woman's mother is therefore Arun's mother, so she is his sister.

69.  

Passage 14

Cities are warmer than the countryside around them, especially at night. Concrete and asphalt soak up heat by day and release it slowly after dark, while trees and open water, which cool the air, are replaced by buildings. The poorest residents, living in crowded tin-roofed rooms without fans, feel this heat most. Planting trees and painting roofs white are cheap remedies, but they work best where they are needed most – in the neighbourhoods least able to pay for them.

Which of the following is the most logical corollary of the passage?

Correct Answer: A [Public spending on cooling measures should give priority to poor, crowded neighbourhoods.]

Explanation:

the remedies work best where people are least able to pay, so public spending should go there first.

70.  

The six letters of the word BANANA can be placed in a row in how many distinct orders?

Correct Answer: B [60]

Explanation:

6! ÷ (3! × 2!) = 720 ÷ 12 = 60, since three A's and two N's repeat.

71.  

Two fair dice are thrown together. What is the probability that the sum of the numbers is 8?

Correct Answer: B [5/36]

Explanation:

the pairs (2,6), (3,5), (4,4), (5,3), (6,2) give 8 – five of 36 outcomes.

72.  

How many numbers from 1 to 300 are divisible by 3 or by 5?

Correct Answer: C [140]

Explanation:

multiples of 3: 100; of 5: 60; of both (15): 20; so 100 + 60 − 20 = 140.

73.  

Passage 15

A judgment written in a language that the litigant cannot read is a decision about him, not a message to him. Courts have begun to publish translations of important judgments in Indian languages. The step matters less for lawyers, who can read the original, than for citizens who want to know why they won or lost.

The author values the translation of judgments mainly because it:

Correct Answer: D [helps citizens understand the reasons for decisions that affect them]

Explanation:

translation turns a decision about a citizen into a message to him, so he can know why he won or lost.

74.  

1 January 2027 is a Friday. What day of the week will 1 March 2027 be?

Correct Answer: B [Monday]

Explanation:

January has 31 days and February 2027 has 28, so 59 days pass; 59 = 8 × 7 + 3, and Friday + 3 days = Monday.

75.  

A cube painted red on all faces is cut into 125 equal smaller cubes. How many of the smaller cubes have exactly one face painted?

Correct Answer: C [54]

Explanation:

with 5 cubes along each edge, each of the 6 faces has a 3 × 3 block of such cubes: 6 × 9 = 54.

76.  

In a two-digit number, the tens digit is twice the units digit. If the digits are reversed, the number decreases by 36. What is the number?

Correct Answer: C [84]

Explanation:

with units digit u, the number is 21u and its reverse 12u; 21u − 12u = 9u = 36, so u = 4 and the number is 84.

77.  

Which of the following is the largest?

Correct Answer: A [2⁴⁰]

Explanation:

2⁴⁰ = (2¹⁰)⁴ = 1024⁴, a little more than 10¹² – the largest.

78.  

Which of the following fractions is the greatest?

Correct Answer: A [5/7]

Explanation:

5/7 ≈ 0.714 is the greatest; each fraction is 2/7, 3/10, 4/13 and 5/16 short of 1, and 2/7 is the smallest gap.

79.  

As a team leader, you notice that a senior colleague often interrupts junior staff in meetings, and the juniors have stopped offering ideas. What is the best first step?

Correct Answer: A [Speak to the colleague privately, describe the behaviour and its effect on the team, and agree on a change.]

Explanation:

a private, specific and respectful conversation addresses the behaviour while keeping the working relationship.

80.  

Question: What is the average weight of the five members of a family – two parents and three children?

Statement 1: The three children together weigh 96 kg.

Statement 2: The two parents together weigh 134 kg.

Correct Answer: C [Both statements together are sufficient, but neither statement alone is sufficient]

Explanation:

together the family weighs 96 + 134 = 230 kg, so the average is 230 ÷ 5 = 46 kg.

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