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CSAT · Set D
UPSC Prelims 2025
80 questions · 2.5 marks each · Qualifying marks: 66/200
Hard
35%
28 questions
RC weight
36%
29 questions
Numerical weight
33%
26 of 80
Qualifying mark
66/200
33% of total
Section breakdown
Reading Comprehension
29 (36%)
Numerical Ability
26 (33%)
Logical & Analytical Reasoning
17 (21%)
Data Interpretation & Sufficiency
8 (10%)
All 80 questions
80 shownClick any row to read the full question and explanation. 80 of 80 have text so far — marks those.
| #▲ | Topic↕ | Section↕ | Type↕ | Difficulty↕ | |
|---|---|---|---|---|---|
| 1 | Climate change - State-level strategies | Reading Comp. | RC - Critical message | Easy | ↗Read |
| 2 | Climate passage - Green energy assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 3 | Insecurity vs poverty in India | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 4 | Insecurity vs poverty in India | Reading Comp. | RC - Valid assumptions | Medium | ↗Read |
| 5 | Painted cube cut into 60 pieces | Reasoning | Cube & geometry | Hard | ↗Read |
| 6 | Symbolic operation puzzle (7*24=25) | Reasoning | Sequence & pattern | Hard | ↗Read |
| 7 | Petrol price hike - expenditure adjustment | Numerical | Arithmetic word problem | Medium | ↗Read |
| 8 | 4-digit number with remainder conditions | Numerical | Number theory | Hard | ↗Read |
| 9 | Inequality chain reasoning (A<B>C) | Reasoning | Inequality logic | Medium | ↗Read |
| 10 | Unit digit of 1x3x5x...x999 | Numerical | Number theory | Medium | ↗Read |
| 11 | Higher education - central idea | Reading Comp. | RC - Central idea | Easy | ↗Read |
| 12 | Higher education - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 13 | Food production & animal calories - crux | Reading Comp. | RC - Central idea | Medium | ↗Read |
| 14 | Food production - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 15 | Maximum power of 35 dividing a product | Numerical | Number theory | Medium | ↗Read |
| 16 | Find X in sequence 24,X,12,18,36,90 | Reasoning | Sequence & pattern | Medium | ↗Read |
| 17 | Circular track - P and Q crossings | Numerical | Time-speed-distance | Hard | ↗Read |
| 18 | Insert operators (PQRS) to satisfy equation | Reasoning | Coding-decoding | Medium | ↗Read |
| 19 | Tram overtaking two walkers - length | Numerical | Time-speed-distance | Hard | ↗Read |
| 20 | Digits in N where N-squared is a palindrome | Numerical | Number theory | Medium | ↗Read |
| 21 | Biodiversity vs commercial exploitation - message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 22 | Ecosystem passage - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 23 | Renewable energy learning curve - central idea | Reading Comp. | RC - Central idea | Medium | ↗Read |
| 24 | Green technology passage - Assumptions | Reading Comp. | RC - Assumption validation | Hard | ↗Read |
| 25 | N as sum of three distinct factors below 50 | Numerical | Number theory | Hard | ↗Read |
| 26 | Three primes in arithmetic progression | Numerical | Number theory | Hard | ↗Read |
| 27 | 1/p + 1/q + 1/r = 1 natural number solutions | Numerical | Algebra & equations | Hard | ↗Read |
| 28 | Month sequence pattern (X and Y) | Reasoning | Sequence & pattern | Hard | ↗Read |
| 29 | Cricket run rate - team X total runs | Numerical | Arithmetic word problem | Hard | ↗Read |
| 30 | Successive percentage increase-decrease relation | Numerical | Algebra & equations | Hard | ↗Read |
| 31 | Agricultural growth stagnation - corollary | Reading Comp. | RC - Corollary inference | Medium | ↗Read |
| 32 | Agriculture divergence passage - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 33 | Handlooms and tradition - logical message | Reading Comp. | RC - Critical message | Hard | ↗Read |
| 34 | Handloom passage - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 35 | Numbers not divisible by 2,3,5,7,9 below 100 | Numerical | Number theory | Hard | ↗Read |
| 36 | Ratio of max (x+y) to min (x-y) | Numerical | Algebra & equations | Medium | ↗Read |
| 37 | Primes p,k where p-squared+k is prime under 30 | Numerical | Number theory | Hard | ↗Read |
| 38 | Sets of three integers with LCM 1001, HCF 1 | Numerical | Number theory | Hard | ↗Read |
| 39 | Cryptarithm PQR - PS = PPT | Reasoning | Coding-decoding | Hard | ↗Read |
| 40 | Letter sequence ABCCC pattern completion | Reasoning | Sequence & pattern | Medium | ↗Read |
| 41 | Crops & genetic diversity - central idea | Reading Comp. | RC - Central idea | Medium | ↗Read |
| 42 | Crop disease passage - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 43 | Statesman and opposition - critical message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 44 | Opposition in democracy - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 45 | Blood relations - definitely true statements | Reasoning | Blood relations | Medium | ↗Read |
| 46 | Coding NOTES based on NO, NOT, NOTE | Reasoning | Coding-decoding | Medium | ↗Read |
| 47 | Coding YEMEN from FRANCE and GERMANY | Reasoning | Coding-decoding | Medium | ↗Read |
| 48 | 5-digit number PQRST with digit constraints | Reasoning | Coding-decoding | Hard | ↗Read |
| 49 | Work and time - value of n | Numerical | Arithmetic word problem | Hard | ↗Read |
| 50 | Find X in sequence 1,3,6,11,18,X,42 | Reasoning | Sequence & pattern | Easy | ↗Read |
| 51 | Inflation index & weighting - logical message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 52 | Trust and entrepreneurship - crux | Reading Comp. | RC - Central idea | Medium | ↗Read |
| 53 | Data sufficiency - football match outcome | DI / DS | Data sufficiency | Medium | ↗Read |
| 54 | Data sufficiency - (p+q)^2-4pq positive | DI / DS | Data sufficiency | Hard | ↗Read |
| 55 | Comparative - three players' runs in T20 | DI / DS | Comparative quantitative | Medium | ↗Read |
| 56 | Comparative - maximum value of p x q | DI / DS | Comparative quantitative | Medium | ↗Read |
| 57 | Comparative - average vs product of 11 numbers | DI / DS | Comparative quantitative | Hard | ↗Read |
| 58 | Average of three numbers - value of r | Numerical | Algebra & equations | Easy | ↗Read |
| 59 | Real number between 0 and 1 - inequalities | Numerical | Number theory | Medium | ↗Read |
| 60 | Numbers divisible by 5 between two naturals | Numerical | Number theory | Easy | ↗Read |
| 61 | Net-zero carbon & demand-side measures - central idea | Reading Comp. | RC - Central idea | Medium | ↗Read |
| 62 | Low-carbon behaviour passage - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 63 | Raw materials reuse & circular economy - message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 64 | Circular economy passage - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 65 | Pipes filling and emptying a tank | Numerical | Arithmetic word problem | Hard | ↗Read |
| 66 | Distinct remainders of 1^n + 2^n mod 4 | Numerical | Number theory | Medium | ↗Read |
| 67 | HCF of QQQ 3-digit number and 481 | Numerical | Number theory | Medium | ↗Read |
| 68 | 489th digit in concatenated natural numbers | Numerical | Number theory | Medium | ↗Read |
| 69 | Stolen phone - logical deduction of culprit | Reasoning | Inequality logic | Medium | ↗Read |
| 70 | Tournament points & goals deduction | Reasoning | Inequality logic | Hard | ↗Read |
| 71 | Corporate capitalism & democracy - critical message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 72 | Corporate capitalism passage - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 73 | Voluntary associations as buffer - explanation | Reading Comp. | RC - Critical message | Hard | ↗Read |
| 74 | Natural numbers with unchanged factor count | Numerical | Number theory | Hard | ↗Read |
| 75 | Seven places connected by roads - distance D to F | Reasoning | Direction & spatial | Hard | ↗Read |
| 76 | Code: 64 to 343, 216 to 729, find 512 | Reasoning | Coding-decoding | Medium | ↗Read |
| 77 | Remainder of 9^3+9^4+...+9^100 mod 6 | Numerical | Number theory | Hard | ↗Read |
| 78 | Data sufficiency - smallest number with 4 factors | DI / DS | Data sufficiency | Medium | ↗Read |
| 79 | Data sufficiency - PP x PQ = RRSS cryptarithm | DI / DS | Data sufficiency | Hard | ↗Read |
| 80 | Data sufficiency - relation of Q to P | DI / DS | Data sufficiency | Medium | ↗Read |