MCQOPTIONS
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MCQOPTIONS
| 1. |
Two pipes A and B can fill a tank in 15 hours and 18 hours, respectively. Both pipes are opened simultaneously to fill the tank. In how many hours will the empty tank be filled? |
| A. | \(8 \dfrac{2}{11}\) |
| B. | \(7 \dfrac{2}{11}\) |
| C. | \(9 \dfrac{2}{11}\) |
| D. | \(10 \dfrac{2}{11}\) |
| Answer» B. \(7 \dfrac{2}{11}\) | |