2011 CSAT, all questions
UPSC Prelims 2011 · CSAT
Question 43: Basic Numeracy
A village having a population of 4000 requires 150 litres of water per head per day. It has a tank measuring 20 m × 15 m × 6 m. The water of this tank will last for
a2 days
b3 days
c4 days
d5 days
UPSC published no Prelims answer keys before 2012.
Source: UPSC, Civil Services (Preliminary) Examination 2011, General Studies Paper II (CSAT), Series A. The paper on upsc.gov.in.