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in Mathematics by (72.3k points)

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 the pool is emptied by cylindrical pipe of radius 7 cm at the rate of 5 km/h.

The time (in hours) to empty water in the pool is (take π = 22/7)

1 Answer

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Best answer

Correct option: (3)

Explanation:

Volume of water in swimming pool = Area of cross section × Speed × Time

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