Question

If a pipe fills a tank of capacity 10 litres in 2 hours, how much time will it take to fill a tank that has a capacity of 15 litres?

• A. 2.5 hr
• B. 3 hr
• C. 3.5 hr
• D. 4 hr

Answer 1

The correct option is B 3 hr

Given,
Time taken to fill 10 litres = 2 hours
Time taken to fill 1 litre = $\frac{2}{10}$
Time taken to fill 15 litres = $\frac{2\times 15}{10}$
= 3 hours