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1. |
A pump can fill a tank with water in 2 hours. Because of a leak, it took $$2\frac{1}{3}$$ hours to to fill the tank. The leak can drain all the water of the tank in? |
A. | $4\frac{1}{3}$$ hours |
B. | hours |
C. | hours |
D. | 4 hours |
Answer» E. | |