MCQOPTIONS
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MCQOPTIONS
| 1. |
Two pipes A and B can fill a tank in 20 minutes and 30 minutes respectively. If only pipe B was kept open in the beginning for 1/5th of the total time and then, both pipe A and B were kept open for the remaining time. How many minutes did it take the pipes to fill the tank? |
| A. | \(13\frac{5}{{11}}\) |
| B. | \(16\frac{5}{{11}}\) |
| C. | \(16\frac{1}{{11}}\) |
| D. | \(13\frac{7}{{11}}\) |
| Answer» E. | |