CivilsIASPrep.comUPSC PYQs: Data sufficiency
Review complete published questions grouped by topic: Data sufficiency.
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Questions
- X receives three different coins chosen from denominations 1, 2, 5, 10 and 20; their total is m. Is a ₹5 coin included? Statement I: m is not prime. Statement II: the sum of the digits of m exceeds 5.2026 · Prelims CSAT · Analytical Ability, Reasoning · Data sufficiency
- For two distinct real numbers x and y, can we determine which is larger? Statement I: x² < y < 1. Statement II: y < √x < 1.2026 · Prelims CSAT · Analytical Ability, Reasoning · Data sufficiency
- Integers x,y,z are each greater than 1. Is x prime? I. xy²=116. II. xz=261.2026 · Prelims CSAT · Analytical Ability, Reasoning · Data sufficiency
- Data sufficiency: With 10 minutes left, football team P trails Q by 3 goals. Does P win? I. P scores 4 goals in the last 10 minutes. II. Q scores 4 goals in the entire match.2025 · Prelims CSAT · Reasoning, Analytical Ability · Data sufficiency
- Data sufficiency: For natural numbers p and q, is (p+q)²−4pq positive? I. p q.2025 · Prelims CSAT · Reasoning, Analytical Ability · Data sufficiency
- What is the smallest one-digit number with exactly four distinct factors? Statement I: 2 is one of its factors. Statement II: 3 is one of its factors. Which data-sufficiency option is correct?2025 · Prelims CSAT · Reasoning, Logical Reasoning · Data sufficiency
- P,Q,R,S are distinct non-zero digits and PP × PQ = RRSS, with P≤3 and Q≤4. What is Q? Statement I: R=1. Statement II: S=2. Which data-sufficiency option is correct?2025 · Prelims CSAT · Reasoning, Logical Reasoning · Data sufficiency
- Data sufficiency: x and y are distinct natural numbers. Can their unique values be determined? Statement I: x/y is an odd integer. Statement II: xy = 12.2024 · Prelims CSAT · CSAT · Data Sufficiency
- A sum is distributed among X, Y and Z. Who received the least? Statement I: X received 4/5 of what Y and Z together received. Statement II: Y received 2/7 of what X and Z together received.2024 · Prelims CSAT · CSAT · Data Sufficiency
- Data sufficiency: The average marks in a class are 60. Can the number of students be determined? Statement I: highest marks are 70 and lowest are 50. Statement II: removing the highest and lowest marks does not change the average.2024 · Prelims CSAT · CSAT · Data Sufficiency
- There are three distinct prime numbers whose sum is also prime. Can the three numbers be uniquely identified? Statement I: their sum is less than 23. Statement II: one of them is 5.2024 · Prelims CSAT · CSAT · Data Sufficiency
- Data sufficiency: Is x+y an integer? Statement I: 2x+y is an integer. Statement II: x+2y is an integer.2024 · Prelims CSAT · CSAT · Data Sufficiency
- A person buys articles p, q and r for ₹50; q costs ₹16 and is the least expensive. What is the price of p? Statement I: p costs no more than r. Statement II: r costs no more than p.2024 · Prelims CSAT · CSAT · Data Sufficiency
- P, Q, R and S took a test. Can we determine whether P scored more than Q? Statement I: P+Q=R+S. Statement II: P+S>Q+R.2024 · Prelims CSAT · CSAT · Data Sufficiency
- P and Q each have a two-digit age between 10 and 100, and reversing the digits of P’s age gives Q’s age. Can their age difference be determined? Statement I: P is older than Q. Statement II: their age sum is 11/6 times their age difference.2024 · Prelims CSAT · CSAT · Data Sufficiency
- Data sufficiency: S1—no page of a 51-page book contains more than two figures. S2—every page contains at least one figure. Can it be determined whether the book contains more than 100 figures?2020 · Prelims CSAT · CSAT · Data Sufficiency