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1. |
Through an inlet, a tank takes 8 h to get filled up. Due to a leak in the bottom, it takes 2 h more to get it filled completely. If the tank is full, how much time will the leak take to empty it? |
A. | 16 h |
B. | 20 h |
C. | 32 h |
D. | 40 h |
Answer» E. | |