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Water is flowing at the rate of 15 km/hour through a pipe of diameter 14 cm into a cuboidal pond which is 50 m long and 44 m wide. In what time will the level of water in the pond rise by 21 cm ?

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Water is flowing at the rate of 15 km per hour though a pipe of diameter 14 cm into a rectangular which is 50 m long and 44 m wide. Find the time in which the level of water in the tank will rise by 21 cm.

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