A pool has a uniform circular cross-section of radius 5m and uniform depth 1.4m. It is filled by a pipe which delivers water at a rate of 20 litres per sec. Calculate,in minutes, the time taken to fill the pool. If the pool is emptied in 42min. by another cylindrical pipe through which water flows at 2m per sec, calculate the radius of the pipe in cm.
Asked by uma | 6th Mar, 2015, 09:55: AM
Answered by Prasenjit Paul | 30th Nov, 2017, 02:25: PM
- please answer fast
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