UPSC PYQPrelims 2026

Civil Services Examination · ಪ್ರಶ್ನೆ 22

What is the minimum number of times one needs to measure to get 298 litres of water from a tank, if the measuring cylinders have capacities 1 litre, 6 litres, 25 litres and 100 litres?

  1. 4
  2. 5
  3. 9
  4. 13
ಉತ್ತರ ತೋರಿಸು ಮತ್ತು ವಿವರಣೆ

ಉತ್ತರ: (B) 5

ವಿವರಣೆ

Take out 100 litres three times (300 L) and put back 1 litre twice: 5 measurements. Four measurements cannot make 298.