← All papers
CSAT · Set A
UPSC Prelims 2023
80 questions · 2.5 marks each · Qualifying marks: 66/200
Hard
24%
19 questions
RC weight
34%
27 questions
Numerical weight
31%
25 of 80
Qualifying mark
66/200
33% of total
Section breakdown
Reading Comprehension
27 (34%)
Numerical Ability
25 (31%)
Logical & Analytical Reasoning
20 (25%)
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 | Water allocation - most rational action | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 2 | Anaemia and productivity - implied message | Reading Comp. | RC - Corollary inference | Medium | ↗Read |
| 3 | Climate change adaptation - logical message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 4 | Maximum attempts to draw a red pair of shoes | Numerical | Number theory | Hard | ↗Read |
| 5 | Ways to score exactly 25 runs | Numerical | Number theory | Hard | ↗Read |
| 6 | Letters and envelopes derangement probability | Numerical | Number theory | Hard | ↗Read |
| 7 | Remainder of product divided by 100 | Numerical | Number theory | Medium | ↗Read |
| 8 | Unit digit of exponential expression | Numerical | Number theory | Medium | ↗Read |
| 9 | Cryptarithm ABC + DEF = 1111 | Reasoning | Coding-decoding | Hard | ↗Read |
| 10 | 3-digit number minimizing ratio to its digit sum | Numerical | Number theory | Hard | ↗Read |
| 11 | Emissions and technological transition - crucial message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 12 | Environmental vs health choices - rational assumption | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 13 | Food consumption and nutrition - crux | Reading Comp. | RC - Central idea | Medium | ↗Read |
| 14 | Even/Odd properties of integer algebraic expressions | Numerical | Number theory | Medium | ↗Read |
| 15 | Properties of expressions with prime and composite numbers | Numerical | Number theory | Medium | ↗Read |
| 16 | Cryptarithm ABC x D = 37DD | Reasoning | Coding-decoding | Hard | ↗Read |
| 17 | Divisibility of 6-digit number XYZXYZ | Numerical | Number theory | Easy | ↗Read |
| 18 | Cubes surrounded in a 125-cube arrangement | Reasoning | Cube & geometry | Medium | ↗Read |
| 19 | Permutations of 11223344 with positional parity | Numerical | Number theory | Hard | ↗Read |
| 20 | Alternating time and work schedule (A, B, C) | Numerical | Arithmetic word problem | Medium | ↗Read |
| 21 | Pollution control measures - logical implication | Reading Comp. | RC - Corollary inference | Medium | ↗Read |
| 22 | Corporate governance - logical inference | Reading Comp. | RC - Corollary inference | Medium | ↗Read |
| 23 | Ecological role of elephants - logical inference | Reading Comp. | RC - Corollary inference | Medium | ↗Read |
| 24 | Number operation pattern (7*9*10=8) | Reasoning | Sequence & pattern | Medium | ↗Read |
| 25 | Divisibility constraint: 7x+96 divisible by x | Numerical | Number theory | Medium | ↗Read |
| 26 | Maximizing (p+q)(r+s) with distinct digits | Numerical | Algebra & equations | Medium | ↗Read |
| 27 | Remainder of repdigit 99...99 divided by 13 | Numerical | Number theory | Hard | ↗Read |
| 28 | Sum of digits of 9-digit repunit squared | Numerical | Number theory | Hard | ↗Read |
| 29 | Sum of all digits in integers from 10 to 100 | Numerical | Number theory | Medium | ↗Read |
| 30 | Distinct triangles from points on square sides | Reasoning | Cube & geometry | Medium | ↗Read |
| 31 | Waste segregation - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 32 | Waste-to-energy - crux | Reading Comp. | RC - Central idea | Medium | ↗Read |
| 33 | Organic farming safety - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 34 | Organic farming - practical message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 35 | Food consumption & monoculture - Assumptions | Reading Comp. | RC - Assumption validation | Hard | ↗Read |
| 36 | Pigeonhole principle drawing balls from a box | Reasoning | Inequality logic | Hard | ↗Read |
| 37 | Coding ZERO as CHUR, finding PLAYER | Reasoning | Coding-decoding | Medium | ↗Read |
| 38 | Data sufficiency - identifying oldest person | DI / DS | Data sufficiency | Medium | ↗Read |
| 39 | Data sufficiency - family tree relationship | DI / DS | Data sufficiency | Medium | ↗Read |
| 40 | Odd one out among number groups (Primes) | Reasoning | Sequence & pattern | Medium | ↗Read |
| 41 | Vernal window passage - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 42 | Nitrogen use efficiency - crucial message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 43 | Climate justice - crucial message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 44 | Comparing compound interest rates (Half-yearly vs Annually) | DI / DS | Comparative quantitative | Easy | ↗Read |
| 45 | Divisors leaving remainder 31 for 1186 | Numerical | Number theory | Hard | ↗Read |
| 46 | Cryptarithm pp + qq + rr = tt0 | Reasoning | Coding-decoding | Hard | ↗Read |
| 47 | Sum of specific 4-digit permutations | Numerical | Number theory | Hard | ↗Read |
| 48 | Selecting consecutive items in a circle | Numerical | Number theory | Easy | ↗Read |
| 49 | Day of the week 10^10 days from Sunday | Reasoning | Sequence & pattern | Medium | ↗Read |
| 50 | Simultaneous traffic signals (LCM) | Numerical | Number theory | Medium | ↗Read |
| 51 | Non-agricultural food sources - logical message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 52 | Antibiotics pollution - practical message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 53 | Foundational skills in education - crux | Reading Comp. | RC - Central idea | Medium | ↗Read |
| 54 | Cycle length of passing a ring in a circle | Reasoning | Sequence & pattern | Hard | ↗Read |
| 55 | Middle term of repeating letter sequence | Reasoning | Sequence & pattern | Medium | ↗Read |
| 56 | Data sufficiency - inequality p vs q | DI / DS | Data sufficiency | Medium | ↗Read |
| 57 | Data sufficiency - inequality (p+q-r) vs (p-q+r) | DI / DS | Data sufficiency | Medium | ↗Read |
| 58 | Data sufficiency - total attendees using set theory | DI / DS | Data sufficiency | Medium | ↗Read |
| 59 | Data sufficiency - identifying a 3-digit number | DI / DS | Data sufficiency | Medium | ↗Read |
| 60 | Data sufficiency - determining age of youngest child | DI / DS | Data sufficiency | Medium | ↗Read |
| 61 | Paradox of choice - logical message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 62 | Financialization of household savings - solutions implied | Reading Comp. | RC - Corollary inference | Medium | ↗Read |
| 63 | Pharmaceutical patents - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 64 | Data protection & privacy - Assumptions | Reading Comp. | RC - Assumption validation | Medium | ↗Read |
| 65 | Number of ways to score 99% across 4 papers | Numerical | Number theory | Hard | ↗Read |
| 66 | Flag designs with adjacent color constraints | Numerical | Number theory | Medium | ↗Read |
| 67 | Fitting tiles on a rectangular floor | Reasoning | Cube & geometry | Hard | ↗Read |
| 68 | Assigning tasks to 5 persons with constraints | Numerical | Number theory | Medium | ↗Read |
| 69 | Weighing 78g with specific silver coins combinations | Numerical | Number theory | Medium | ↗Read |
| 70 | Coded inequality statements and conclusions | Reasoning | Inequality logic | Medium | ↗Read |
| 71 | Unemployment rate metrics - author's intent | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 72 | Science, philosophy, and government - message | Reading Comp. | RC - Critical message | Medium | ↗Read |
| 73 | Ultimate goal of the state according to text | Reading Comp. | RC - Central idea | Easy | ↗Read |
| 74 | Remainder of 2^192 divided by 6 | Numerical | Number theory | Medium | ↗Read |
| 75 | Missing sequence ABCABC_DABBCD_ABCD | Reasoning | Sequence & pattern | Medium | ↗Read |
| 76 | Cryptarithm AB x CD = DEF, DEF + GHI = 975 | Reasoning | Coding-decoding | Hard | ↗Read |
| 77 | True/False statements logic puzzle for candidates | Reasoning | Inequality logic | Hard | ↗Read |
| 78 | Deductive logic from conditional statements | Reasoning | Inequality logic | Medium | ↗Read |
| 79 | Painted cuboid cut into 1cm cubes | Reasoning | Cube & geometry | Medium | ↗Read |
| 80 | Reverse alphabetical sorting of a word | Reasoning | Coding-decoding | Medium | ↗Read |