A: If it took 14hours to fill the tank, the leak will take 14 - 7 = 3 hours to empty the tank. The answer is (E).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:An electric pump can fill a tank in 7 hours. Because of a leak in the tank, it took 14hours to fill the tank. If the tank is full, how much time will the leak take to empty it? Answer Choices: A)10hours B)12hours C)8hours D)5hours E)14hours