UPSC Prelims 2025 CSAT Paper — 78 Questions with Answers

CSAT Paper II of the 2025 Preliminary examination, held on 25 May 2025. 80 questions · 200 marks · qualifying at 33%. The questions broke down as Comprehension 29, Basic Numeracy 26, Logical Reasoning 10, Mental Ability 8, Data Interpretation 5.

  1. Q1 Which one of the following statements best reflects the central idea conveyed by the passage ?
    Comprehension· medium
  2. Q2 With reference to the above passage, the following assumptions have been made : I. Higher education is a constantly evolving subject that needs to align towards new developments in all spheres of society. II. In our country, sufficient funds are not allocated…
    Comprehension· medium
  3. Q3 Which one of the following statements best reflects the crux of the passage ?
    Comprehension· medium
  4. Q4 With reference to the above passage, the following assumptions have been made : I. The food manufacturing and processing industries in every country should align their objectives and processes in accordance with the changing needs of the societies. II…
    Comprehension· medium
  5. Q5 What is the maximum value of n such that 7 × 343 × 385 × 1000 × 2401 × 77777 is divisible by 35ⁿ ?
    Basic Numeracy· medium
  6. Q6 What is X in the sequence 24, X, 12, 18, 36, 90 ?
    Mental Ability· easy
  7. Q7 P and Q walk along a circular track. They start at 5:00 a.m. from the same point in opposite directions. P walks at an average speed of 5 rounds per hour and Q walks at an average speed of 3 rounds per hour. How many times will they cross each other between…
    Basic Numeracy· medium
  8. Q8 If P = +, Q = –, R = ×, S = ÷, then insert the proper notations between the successive numbers in the equation 60_15_3_20_4 = 20 :
    Logical Reasoning· medium
  9. Q9 A tram overtakes 2 persons X and Y walking at an average speed of 3 km/hr and 4 km/hr in the same direction and completely passes them in 8 seconds and 9 seconds respectively. What is the length of the tram ?
    Basic Numeracy· medium
  10. Q10 If N² = 12345678987654321, then how many digits does the number N have ?
    Basic Numeracy· easy
  11. Q11 Which one of the following statements best reflects the corollary to the above passage ?
    Comprehension· medium
  12. Q12 With reference to the passage, the following assumptions have been made : The growing divergence between the fortunes of the agricultural and non-agricultural economy in India could have been reduced/contained by : I. adapting large-scale cultivation of…
    Comprehension· medium
  13. Q13 Which one of the following statements best reflects the most logical and rational message conveyed by the author of the passage ?
    Comprehension· medium
  14. Q14 With reference to the above passage, the following assumptions have been made : I. There is no need for the State to be involved in any manner in the handloom sector. II. Handloom products are no longer appealing and attractive in the rapidly changing modern…
    Comprehension· medium
  15. Q15 Consider the first 100 natural numbers. How many of them are not divisible by any one of 2, 3, 5, 7 and 9 ?
    Basic Numeracy· medium
  16. Q16 If 4 ≤ x ≤ 8 and 2 ≤ y ≤ 7, then what is the ratio of maximum value of (x + y) to minimum value of (x - y) ?
    Basic Numeracy· easy
  17. Q17 Let both p and k be prime numbers such that (p² + k) is also a prime number less than 30. What is the number of possible values of k ?
    Basic Numeracy· medium
  18. Q18 There are n sets of numbers each having only three positive integers with LCM equal to 1001 and HCF equal to 1. What is the value of n ?
    Basic Numeracy· hard
  19. Q19 Let PQR be a 3-digit number, PPT be a 3-digit number and PS be a 2-digit number, where P, Q, R, S, T are distinct non-zero digits. Further, PQR - PS = PPT . If Q = 3 and T < 6, then what is the number of possible values of (R, S) ?
    Mental Ability· medium
  20. Q20 Consider the sequence AB_CC_A_BCCC_BBC_C that follows a certain pattern. Which one of the following completes the sequence ?
    Mental Ability· medium
  21. Q21 Which one of the following statements best reflects the most logical, rational and pragmatic message conveyed by the author of the passage ?
    Comprehension· medium
  22. Q22 With reference to the passage, the following assumptions have been made : I. Green energy production can be linked to/integrated with the climate change mitigation and adaptation strategies. II. Effects of climate change are much more severe in coastal and…
    Comprehension· medium
  23. Q23 Which one of the following statements best reflects the critical message conveyed by the passage ?
    Comprehension· medium
  24. Q24 With reference to the above passage, the following assumptions have been made : I. People above the poverty line also are prone to suffer from anxiety about economic insecurity. II. Eradication of poverty can result in peace and social equality in the…
    Comprehension· medium
  25. Q25 A solid cube is painted yellow on all its faces. The cube is then cut into 60 smaller but equal pieces by making the minimum number of cuts. Which of the following statements is/are correct ? I. The minimum number of cuts is 9. II. The number of smaller…
    Mental Ability· medium
  26. Q26 If 7 * 24 = 25 and 12 * 16 = 20, then what is 16 * 63 equal to ?
    Logical Reasoning· medium
  27. Q27 The petrol price shot up by 10% as a result of the hike in crude oil prices. The price of petrol before the hike was ₹ 90 per litre. A person travels 2200 km every month and his car gives a mileage of 16 km per litre. By how many km should he reduce his…
    Basic Numeracy· easy
  28. Q28 A 4-digit number N is such that when divided by 3, 5, 6, 9 leaves a remainder 1, 3, 4, 7 respectively. What is the smallest value of N ?
    Basic Numeracy· medium
  29. Q29 Consider the following statements : I. If A ≤ B > C < D > E > F ≥ G = H; then B is always greater than E. II. If P > Q = R ≥ S = T ≤ U = V > W; then S is always less than V. Which of the statements given above is/are correct ?
    Logical Reasoning· medium
  30. Q30 What is the unit digit in the multiplication of 1 × 3 × 5 × 7 × 9 × ... × 999 ?
    Basic Numeracy· easy
  31. Q31 Which one of the following statements best reflects the critical message conveyed by the author of the passage ?
    Comprehension· medium
  32. Q32 With reference to above passage, the following assumptions have been made : I. No country needs to depend on ecosystems to boost national income. II. Resource-rich countries need to share their resources with those of scant resources so as to prevent the…
    Comprehension· medium
  33. Q33 Which one of the following statements best reflects the central idea of the passage ?
    Comprehension· medium
  34. Q34 With reference to the above passage, the following assumptions have been made : I. Path-dependent green investments will eventually most likely benefit growth as well as public finances in a country like India. II. If other green technologies follow the same…
    Comprehension· medium
  35. Q37 How many possible values of (p + q + r) are there satisfying 1/p + 1/q + 1/r = 1, where p, q and r are natural numbers (not necessarily distinct) ?
    Basic Numeracy· medium
  36. Q38 What comes at X and Y respectively in the following sequence ? January, January, December, October, X, March, October, Y, September
    Mental Ability· medium
  37. Q39 Team X scored a total of N runs in 20 overs. Team Y tied the score in 10% less overs. Had team Y's average run rate (runs per over) been 50% higher, the scores would have been tied in 12 overs. How many runs were scored by team X ?
    Basic Numeracy· medium
  38. Q40 The price (p) of a commodity is first increased by k%; then decreased by k%; again increased by k%; and again decreased by k%. If the new price is q, then what is the relation between p and q ?
    Basic Numeracy· medium
  39. Q41 Which one of the following statements best reflects the most logical, rational and crucial message conveyed by the passage ?
    Comprehension· medium
  40. Q42 Which one of the following statements best reflects the crux of the passage ?
    Comprehension· medium
  41. Q43 A question is given followed by two Statements I and II. Consider the Question and the Statements and mark the correct option. Question : In a football match, team P playing against Q was behind by 3 goals with 10 minutes remaining. Does team P win the match…
    Data Interpretation· easy
  42. Q44 A question is given followed by two Statements I and II. Consider the Question and the Statements and mark the correct option. Question : Is (p + q)^2 - 4 pq, where p, q are natural numbers, positive ? Statement I : p < q. Statement II : p > q. Which one of…
    Data Interpretation· easy
  43. Q45 In a T20 cricket match, three players X, Y and Z scored a total of 37 runs. The ratio of number of runs scored by X to the number of runs scored by Y is equal to ratio of number of runs scored by Y to number of runs scored by Z. Value-I = Runs scored by X…
    Basic Numeracy· medium
  44. Q46 Let p + q = 10, where p, q are integers. Value-I = Maximum value of p × q when p, q are positive integers. Value-II = Maximum value of p × q when p ≥ -6, q ≥ -4. Which one of the following is correct ?
    Basic Numeracy· easy
  45. Q47 Consider a set of 11 numbers : Value-I = Minimum value of the average of the numbers of the set when they are consecutive integers ≥ -5. Value-II = Minimum value of the product of the numbers of the set when they are consecutive non-negative integers. Which…
    Basic Numeracy· medium
  46. Q48 The average of three numbers p, q and r is k. p is as much more than the average as q is less than the average. What is the value of r ?
    Basic Numeracy· easy
  47. Q49 Let x be a real number between 0 and 1. Which of the following statements is/are correct ? I. x² > x³. II. x > √x. Select the correct answer using the code given below :
    Basic Numeracy· easy
  48. Q50 The difference between any two natural numbers is 10. What can be said about the natural numbers which are divisible by 5 and lie between these two numbers ?
    Basic Numeracy· easy
  49. Q51 Which one of the following statements best reflects the critical message conveyed by the author of the passage ?
    Comprehension· medium
  50. Q52 With reference to the above passage, the following assumptions have been made : I. Corporate capitalism promotes the growth of labour force and provides more employment opportunities. II. Poor and marginalized sections of population are benefited by corporate…
    Comprehension· medium
  51. Q53 Which one of the following statements reflects the best explanation of the above passage ?
    Comprehension· medium
  52. Q54 Consider the following statements : I. There exists a natural number which when increased by 50% can have its number of factors unchanged. II. There exists a natural number which when increased by 150% can have its number of factors unchanged. Which of the…
    Basic Numeracy· hard
  53. Q55 There are 7 places A, B, C, D, E, F and G in a city connected by various roads AB, AC, CD, DE, BF, EG and FG. A is 6 km south of B. A is 10 km west of C. D is 5 km east of E. C is 6 km north of D. F is 9 km west of B. F is 12 km north of G. A person travels…
    Logical Reasoning· medium
  54. Q56 In a certain code if 64 is written as 343 and 216 is written as 729, then how is 512 written in that code ?
    Logical Reasoning· easy
  55. Q57 What is the remainder when 9³ + 9⁴ + 9⁵ + 9⁶ + ... + 9¹⁰⁰ is divided by 6 ?
    Basic Numeracy· easy
  56. Q58 A question is given followed by two Statements I and II. Consider the Question and the Statements and mark the correct option. Question : What is the smallest 1-digit number having exactly 4 distinct factors ? Statement I : 2 is one of the factors. Statement…
    Data Interpretation· easy
  57. Q59 A question is given followed by two Statements I and II. Consider the Question and the Statements and mark the correct option. Question : Let P, Q, R, S be distinct non-zero digits. If PP × PQ = RRSS, where P ≤ 3 and Q ≤ 4, then what is Q equal to ? Statement…
    Data Interpretation· medium
  58. Q60 A question is given followed by two Statements I and II. Consider the Question and the Statements and mark the correct option. Question : How is Q related to P ? Statement I : P has two sisters, R and S. Statement II : R's father is the brother of Q. Which…
    Data Interpretation· easy
  59. Q61 Which one of the following statements best reflects the central idea conveyed by the passage ?
    Comprehension· medium
  60. Q62 With reference to the above passage, the following assumptions have been made : I. Global climate change can result in the migration of several plant diseases to new areas. II. Scientific understanding of the wild relatives of our present crops would enable…
    Comprehension· medium
  61. Q63 Which one of the following statements best reflects the critical message conveyed by the author of the passage ?
    Comprehension· medium
  62. Q64 With reference to the above passage, the following assumptions have been made : I. In a democracy, a strong opposition is required only if the Head of Government is indifferent. II. The more aggressive the opposition, the better is the governance in a…
    Comprehension· medium
  63. Q65 P is the brother of Q and R. S is R's mother. T is P's father. How many of the following statements are definitely true ? I. S and T are a couple. II. Q is T's son. III. T is Q's father. IV. S is P's mother. V. R is T's daughter. VI. P is S's son. Select the…
    Logical Reasoning· medium
  64. Q66 If NO is coded as 210, NOT is coded as 4200 and NOTE is coded as 21000, then how is NOTES coded ?
    Logical Reasoning· medium
  65. Q67 If FRANCE is coded as 654321 and GERMANY is coded as 9158437, then how is YEMEN coded ?
    Logical Reasoning· medium
  66. Q68 The 5-digit number PQRST (all distin is such that T ≠ 0. P is thrice T. S is greater than Q by 4, while Q is greater than R by 3. How many such 5-digit numbers are possible ?
    Mental Ability· medium
  67. Q69 X can complete one-third of a certain work in 6 days, Y can complete one-third of the same work in 8 days and Z can complete three-fourth of the same work in 12 days. All of them work together for n days and then X and Z quit and Y alone finishes the…
    Basic Numeracy· medium
  68. Q70 What is X in the sequence 1, 3, 6, 11, 18, X, 42 ?
    Mental Ability· medium
  69. Q71 Which one of the following statements best reflects the central idea conveyed by the passage ?
    Comprehension· medium
  70. Q72 With reference to the above passage, the following assumptions have been made : I. Supply-side investments in companies can result in low-carbon behaviour in people. II. People are not capable of adapting low-carbon behaviour without the involvement of…
    Comprehension· medium
  71. Q73 Which one of the following statements best reflects the most logical, rational and pragmatic message conveyed by the passage ?
    Comprehension· medium
  72. Q74 With reference to the above passage, the following assumptions have been made : I. Automobile factories are examples of the circular economy. II. Economic growth is compatible with circular use of mineral resources. Which of the above assumptions is/are valid…
    Comprehension· medium
  73. Q75 A set (X) of 20 pipes can fill 70% of a tank in 14 minutes. Another set (Y) of 10 pipes fills 3/8th of the tank in 6 minutes. A third set (Z) of 16 pipes can empty half of the tank in 20 minutes. If half of the pipes of set X are closed and only half of the…
    Basic Numeracy· medium
  74. Q76 If n is a natural number, then what is the number of distinct remainders of (1ⁿ + 2ⁿ) when divided by 4 ?
    Basic Numeracy· easy
  75. Q77 Let P = QQQ be a 3-digit number. What is the HCF of P and 481 ?
    Basic Numeracy· medium
  76. Q78 What is the 489ᵗʰ digit in the number 123456789101112 . . . ?
    Mental Ability· medium
  77. Q79 A mobile phone has been stolen. There are 3 suspects P, Q and R. They were questioned knowing that only one of them is guilty. Their responses are as follows : P : I did not steal. Q stole it. Q : R did not steal. I did not steal. R : I did not steal. I do…
    Logical Reasoning· medium
  78. Q80 Three teams P, Q, R participated in a tournament in which the teams play with one another exactly once. A win fetches a team 2 points and a draw 1 point. A team gets no point for a loss. Each team scored exactly one goal in the tournament. The team P got 3…
    Logical Reasoning· medium

Question paper and answer key: Union Public Service Commission. Explanations: UPSC Answer Check. Practise this paper with a timer →