A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 hours to fill the tank. The leak can drain all the water of the tank in? Choose one:  A) 7 hrs  B) 8 hrs  C) 10 hrs  D) 12 hrs  E) 14 hrs
Work done by the leak in 1 hour = 1	-	3 =	1	.   2	7	14   Leak will empty the tank in 14 hrs.   14 hrs)
<result>E</result>
A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 hours to fill the tank. The leak can drain all the water of the tank in?