Give a quick stream of consciousness before answering the following question. A pump can fill a tank with water in 2 hours. Because of a leak, it took 2 1/3 hours to fill the tank. The leak can drain all the water of the tank in?\nOptions:\n(A) 4 1/3 hrs\n(B) 7 hrs\n(C) 8 hrs\n(D) 14 hrs\n(E) 15 hrs
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Work done by the tank in 1 hour = (1/2 - 1/3) = 1/14 Leak will empty the tank in 14 hrs.
The answer: (D).
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