2025 CSAT, all questions

UPSC Prelims 2025 · CSAT

Question 29: Basic Numeracy

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) ?

a2
b3
c4
dMore than 4

UPSC's 2025 key was reported published in May 2026, but no file was found on upsc.gov.in or in the Wayback Machine. The 2025 papers can be browsed, not scored.

Practise this paper timedPrevious questionNext question

Source: UPSC, Civil Services (Preliminary) Examination 2025, General Studies Paper II (CSAT), Series A. The paper on upsc.gov.in.