UPSC Civil Service Prelims Paper II 2021 (CSAT) | UPSC Civil Service Year Wise Previous Years Questions

Basic Numeracy

1. A person X from place A and another person Y from place B set out at the same time to walk towards each other. The place 2. A student appeared in 6 papers. The maximum marks are the same for each paper. His marks in these papers are in the prop 3. If 32019 is divided by 10, then what is the remainder? 4. The number 3798125P369 is divisible by 7. What is the value of the digit P? 5. From January 1, 2021, the price of petrol (in Rupees per litre) on mth day of the year is 80 + 0.1 m, where m 6. A biology class at Central High School predicted that a local population of animals will double in size every 12 years. 7. In a class, 60% of students are from India and 50% of the students are girls. If 30% of the Indian students are girls, t 8. Consider all 3-digit numbers (without repetition of digits) obtained using three non-zero digits which are multiples of 9. There are two Classes A and B having 25 and 30 students respectively. In Class-A the highest score is 21 and lowest scor 10. A boy plays with a ball and he drops it from a height of 1.5 m. Every time the ball hits the ground, it bounces back to 11. Integers are listed from 700 to 1000. In how many integers is the sum of the digits 10 ? 12. There are three points P, Q and R on a straight line such that PQ : QR = 3 : 5. If n is the number of possible values of 13. On a chess board, in how many different ways can 6 consecutive squares be chosen on the diagonals along a straight path 14. In the series _b_a_ba_b_abab_aab; fill in the six blanks ( _ ) using one of the following given four choices such that 15. Using 2, 2, 3, 3, 3 as digits, how many distinct numbers greater than 30000 can be formed ? 16. Consider the following statements : 1. The sum of 5 consecutive integers can be 100. 2 The product of three conse 17. A cubical vessel of side 1 m is filled completely with water. How many millilitres of water is contained in it (neglect 18. There are 6 persons arranged in a row. Another person has to shake hands with 3 of them so that he should not shake hand 19. An amount of money was distributed among A, B and C in the ratio p : q : r. Consider the following statements : 1. A g 20. Consider two Statements and a Question : Statement-1 : The last day of the month is a Wednesday. Statement-2 : The thi 21. Which day is 10th October, 2027 ?  22. What is the value of ‘X’ in the sequence 2, 7, 22, 67, 202, X, 1822, ? 23. Joseph visits the club on every 5th day, Harsh visits on every 24th day, while Sumit visits on every 9th day. If al 24. The difference between a 2-digit number and the number obtained by interchanging the positions of the digits is 54. Con 25. X said to Y, "At the time of your birth I was twice as old as you are at present." If the present age of X is 42 years, 26. If the price of an article is decreased by 20% and then the new price is increased by 25%, then what is the net change i 27. When a certain number is multiplied by 7, the product entirely comprises ones only (1111....). What is the smallest such 28. A man completes 7/8 of a job in 21 days. How many more days will it take him to finish the job if quantum of work furthe 29. Jay and Vijay spent an equal amount of money to buy some pens and special pencils of the same quality from the same stor 30. P scored 40 marks more than Q in the examination. If Q scores 10% less marks than P, then how much did Q score? 31. A person P asks one of his three friends X as to how much money he had. X replied, "If Y gives me Rs. 40, then Y will ha 32. At which one of the following times, do the hour hand and the minute hand of the clock make an angle of 180° with each o 33. In an objective type test of 90 questions, 5 marks are allotted for every correct answer and 2 marks are deducted for ev 34. Consider the following addition problem: 3P + 4P + PP + PP = RQ2; where P, Q and R are different digits. What is the a 35. Consider the following multiplication problem: (PQ) × 3 = RQQ, where P, Q and R are different digits and R ≠

Comprehension

Data Interpretation

1. Consider two Statements and a Question: Statement 1: Each of A and D is heavier than each of B, E and F, but none 2. Consider the following Table: Player Runs scored in the First Innings Balls faced in 3. A pie diagram shows the percentage distribution of proteins, water and other dry elements in the human body. Given that

Logical Reasoning and General Mental Ability

1. Seven books P, Q, R, S, T, U and V are placed side by side. R, Q and T have blue covers and other books have red covers. 2. Replace the incorrect term by the correct term in the given sequence 3, 2, 7, 4, 13, 10, 21, 18, 31, 28, 43, 40 where 3. Following is a matrix of certain entries. The entries follow a certain trend row-wise. Choose the missing entry (?) acco 4. You are given two identical sequences in two rows: Sequence-I:  8   4 5. A Statement followed by Conclusion-I and Conclusion-II is given below. You have to take the Statement to be true even if 6. In a group of 120 persons, 80 are Indians and rest are foreigners. Further, 70 persons in the group can speak English, T 7. Consider two Statements and a Question: Statement 1: Priya is 4 ranks below Seema and is 31st from the b 8. In the English alphabet, the first 4 letters are written in opposite order; and the next 4 letters are written in opposi 9. A Statement followed by Conclusion-I and Conclusion-II is given below, You have to take the Statement to be true even if 10. Images of consonants of the English alphabet (Capitals) are observed in a mirror. What is the number of images of these 11. A bank employee drives 10 km towards South from her house and turns to her left and drives another 20 km. She again turn 12. A woman runs 12 km towards her North, then 6 km towards her South and then 8 km towards her East. In which direction is 13. Half of the villagers of a certain village have their own houses. One-fifth of the villagers cultivate paddy. 14. Consider two Statements and four Conclusions given below. You have to take the Statements to be true even if t 15. In a certain code language 'MATHEMATICS' is written as 'LBSIDNZUHDR'. How is 'CHEMISTRY' written in that code language?

Basic Numeracy

Comprehension

Data Interpretation

Logical Reasoning and General Mental Ability

UPSC Civil Service Prelims Paper II 2021 (CSAT)

MCQ (Single Correct Answer)

+2.5

-0.83

Half of the villagers of a certain village have their own houses. One-fifth of the villagers cultivate paddy. One-third of the villagers are literate. Four-fifth of the villagers are under 25 years of age. Which one of the following statements is certainly correct ?

All the villagers who have their own houses are literate.

Some villagers under 25 years of age are literate.

Only half of the villagers who cultivate paddy are literate.

No villager under 25 years of age has his own house.

UPSC Civil Service Prelims Paper II 2021 (CSAT)

MCQ (Single Correct Answer)

+2.5

-0.83

Consider two Statements and four Conclusions given below. You have to take the Statements to be true even if they seem to be at variance from the commonly known facts. Read all Conclusions and then decide which of the given Conclusion(s) logically follows/follow from the Statements, disregarding the commonly known facts.

Statement - 1 : Some greens are blues.

Statement - 2 Some blues are blacks.

Conclusion - 1 : Some greens are blacks.

Conclusion - 2 : No green is black.

Conclusion - 3 : All greens are blacks.

Conclusion - 4 : All blacks are greens.

Which one of the following is correct ?

Conclusion-1 and Conclusion-2 only

Conclusion-2 and Conclusion-3 only

Conclusion-3 and Conclusion-4 only

Neither Conclusion 1 nor 2 nor 3 nor 4

UPSC Civil Service Prelims Paper II 2021 (CSAT)

MCQ (Single Correct Answer)

+2.5

-0.83

In a certain code language 'MATHEMATICS' is written as 'LBSIDNZUHDR'. How is 'CHEMISTRY' written in that code language?

DIDLHRSSX

BIDNHTSSX

BIDLHTSSX

DGFLIRUQZ