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The surface of water in a swimming pool, when it is full of water, is rectangular with length and breadth 36 m and 10.5 m respectively. The depth of water increases uniformly from 1 m at one end to 1.75 m at the other end. The water in pool is emptied by a cylindrical pipe of radius 7 cm at the rate of 5km/h. The time ( in hours) to empty water in pool is |
| Answer» The surface of water in a swimming pool, when it is full of water, is rectangular with length and breadth 36 m and 10.5 m respectively. The depth of water increases uniformly from 1 m at one end to 1.75 m at the other end. The water in pool is emptied by a cylindrical pipe of radius 7 cm at the rate of 5km/h. The time ( in hours) to empty water in pool is | |