Question

A pump can fill a tank with water in 2 hours. Because of a leak, it took $2\frac{1}{3}$ hours to fill the tank.
How long will it take for the leak can drain all the water of the tank?

• A. 13/3 hrs
• B. 7 hrs
• C. 8 hrs
• D. 14 hrs
• E. 16 hrs

Answer 1

The correct option is D

14 hrs

Work done by the leak in 1 hour $=(\frac{1}{2}-\frac{3}{7})=\frac{1}{14}$

The leak will empty the tank in 14 hrs.