MCQOPTIONS
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MCQOPTIONS
| 1. |
A tank can be filled with water by two pipes A and B together in 36 minutes. If the pipe B was stopped after 30 minutes, the tank is filled in 40 minutes. The pipe B can alone fill the tank in |
| A. | (1) 45 minutes |
| B. | (2) 60 minutes |
| C. | (3) 75 minutes |
| D. | (4) 90 minutes |
| Answer» E. | |