Question

a pool has auniform circular cross section of 5m and uniform depth of 1.4m . it is filled by a pipe which delivers water at the rate of 20 litres per second. calculate in minutes the time taken to fill the pool. if the police emptied in 42 minutes by another cylindrical pipe through which water flows at 2 metre per second calculate the radius of the pipe in centimetres​

Answer 1

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