A pump can fill a tank with water in 2 hours. Because of a leak, it took hours to fill the tank. The leak can drain all the water of the tank in: Choices.
A) 33	B) 37	C) 76	D) 14	E) 29
Explanation:   Work done by the leak in 1 hour ={\color{Black} \left ( \frac{1}{2}-\frac{3}{7} \right )=\frac{1}{14}}   {\color{Black} \therefore } Leak will empty the tank in 14 hrs   Answer: 14) 14 hours
<result>D</result>
A pump can fill a tank with water in 2 hours. Because of a leak, it took hours to fill the tank. The leak can drain all the water of the tank in: