Asked by Satish

A hemispherical tank, full of water, is emptied by a pipe at the rate of 22/7 litres per second. How much time it will take to empty half the tank if the diameter of the base of the tank is 3m?

Answers

Answered by oobleck
the volume of a sphere of diameter d is π/6 d^3
so, you want to empty 1/4 of the sphere (half a hemisphere), or
π/24 * 3^3 = 9π/8 m^3 = 9000π/8 L
At a rate of π L/s, that will take 9000/8 = 1125 seconds
or 18.75 minutes
Answered by Satish
The given answer of this question is 16 min 30 sec
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