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| 1. |
How many litres of water flows out through a pipe having an area of cross- section of \[56c{{m}^{2}}\]in one minute, if the speed of water in pipe is 30 cm/sec? |
| A. | 9 litres |
| B. | 15 litres |
| C. | 30 litres |
| D. | 3 litres |
| Answer» B. 15 litres | |