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1. |
Pipe A can fill a tank in 6 hours. Pipe B can fill the same tank in 8 hours. Pipe A, B and C together can fill the same tank in 12 hours. Then which of the following statements is true for pipe C? |
A. | It can fill the tank in 4 hours 40 minutes |
B. | It can fill the tank in 4 hours 48 minutes |
C. | It can empty the tank in 4 hours 48 minutes |
D. | It can empty the tank in 4 hours 40 minutes |
Answer» D. It can empty the tank in 4 hours 40 minutes | |