A pump can fill a tank with a water in 2 hours. Because of a leak, it took 3 and 1/3 hours to fill the tank. The leak can drain all the water of the full tank in how many hours?  Select.
A) 5 hrs	B) 7 hrs	C) 12 hrs	D) 14 hrs	E) 16 hrs
The rate of the pump + leak = 3/10   1/2 - leak's rate = 3/10   leak's rate = 1/5   The leak will empty the tank in 5 hours.   The answer is 5 hrs.
<result>A</result>
A pump can fill a tank with a water in 2 hours. Because of a leak, it took 3 and 1/3 hours to fill the tank. The leak can drain all the water of the full tank in how many hours?