MCQOPTIONS
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| 1. |
Pipes A and B can fill a tank in 12 minutes and 15 minutes, respectively. The tank when full can be emptied by pipe C in x minutes. When all the three pipes are opened simultaneously, the tank is full in 10 minutes. The value of x is: |
| A. | 24 |
| B. | 18 |
| C. | 15 |
| D. | 20 |
| Answer» E. | |