A pump can fill a tank with water in 3 hours. Because of a leak, it took \(3\frac{1}{3}\) hours to fill the tank. In how many hours can the leak alone drain all the water of the tank when it is full?

A pump can fill a tank with water in 3 hours. Because of a leak, it to

1.	A pump can fill a tank with water in 3 hours. Because of a leak, it took \(3\frac{1}{3}\) hours to fill the tank. In how many hours can the leak alone drain all the water of the tank when it is full?
A.	21
B.	10
C.	30
D.	15
Answer» D. 15

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A pump can fill a tank with water in 3 hours. Because of a leak, it took \(3\frac{1}{3}\) hours to fill the tank. In how many hours can the leak alone drain all the water of the tank when it is full?

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