A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 1/5 hours to fill the tank. The leak can drain all the water of the tank in? Choose the correct answer:
A) 17 hr	B) 19 hr	C) 22 hr	D) 24 hr	E) 26 hr
Work done by the tank in 1 hour   = (1/2 - 2 1/5)   = 1/22 Leak will empty the tank in 22 hrs.   Answer:22 hr
<result>C</result>
A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 1/5 hours to fill the tank. The leak can drain all the water of the tank in?