UPSC Prelims 2026 · CSAT Paper 2 · Set DLogical ReasoningQ 13 / 80

UPSC Prelims 2026 CSAT Paper 2 — Question 13

Question

P, Q, R, S and T are ranked 1 to 5 (not necessarily in that order). The rank of P is 4, the rank of Q is not 5, the rank of R is 1, the rank of S is not 2, the rank of T is not 3. Then which of the following is/are correct? I. If the rank of S is 3, then that of T is 2. II. If the rank of Q is 3, then that of T is 5. Select the answer using the code given below.

(a)I only
(b)II only
(c)Both I and II
(d)Neither I nor II

UnlockIAS answer: (d)Neither I nor II

Solution

R = 1, P = 4, leaving {2, 3, 5} for Q, S, T. If S = 3, then Q ≠ 5 forces Q = 2 and T = 5 (not 2) → I fails. If Q = 3, then S ≠ 2 forces S = 5 and T = 2 (not 5) → II fails. Neither is correct.

UnlockIAS expert key, prepared 24 May 2026 and cross-verified by re-deriving the answer — this is our key, not the official UPSC provisional key (awaited).

Section

Logical Reasoning

Topic Reference

Logical Reasoning — Ranking

Official UPSC key still awaited

UPSC has announced (PIB Release 2262441, 18 May 2026) that the provisional answer key for CSE Prelims 2026 will be released “soon after Exam”. Until then, use the CSAT score calculator for your qualifying-status estimate, and join the per-question discussion below.

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Official Notification

PIB Release 2262441

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