If Nandu uses 10 % less water by fixing a leak, how many liters of water does he save in a month (30 days) if his daily usage is 50 litres?

Step-by-step solution

1. Calculate 10 % of 50 litres: $0.10\times 50=5$ litres saved each day.
2. Multiply daily savings by 30 days: $5\times 30=150$ litres saved in 30 days.

Concept tested: Percentage savings in water

Published 13 October 2026 · How this solution was prepared and checked