← All CSAT questionsMore Basic Numeracy & Arithmetic questions and the solving guide →
2026
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?
Explanation
To measure 298 litres using 1 L, 6 L, 25 L, and 100 L cylinders, one can fill the 100 L cylinder three times (300 L) and then subtract 2 L using the 1 L cylinder twice. This totals 5 measurements: 3 (100 L) + 2 (1 L) = 5.
New here?