2025 CSAT, all questions
UPSC Prelims 2025 · CSAT
Question 66: Logical Reasoning and Mental Ability
In a certain code if 64 is written as 343 and 216 is written as 729, then how is 512 written in that code ?
a1000
b1331
c1728
d2197
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.
Source: UPSC, Civil Services (Preliminary) Examination 2025, General Studies Paper II (CSAT), Series A. The paper on upsc.gov.in.