A pump can fill a tank with water in 2 hours. Because of a leak, it took 2x1/3 hours to fill the tank. The leak can drain all the water of the tank in	Choose the correct choice
A) 5 hours B) 7 hours C) 8 hours D) 14 hours E) None
Solution   Work done by the leak in 1 hour	=(1/2 - 3/7)   ‹=›1/14.   Leak will empty the tank in 14 hours.   Answer 14 hours
<result>D</result>
A pump can fill a tank with water in 2 hours. Because of a leak, it took 2x1/3 hours to fill the tank. The leak can drain all the water of the tank in