A hemispherical tank full of water is emptied by a pipe at the rate of

1.	A hemispherical tank full of water is emptied by a pipe at the rate of 25/7 litre per sec .How much time will it take to empty half the tank if it 3 in diameter ?
Answer» Diameter = 3mradius = 3/2 = 1.5 m volume=2/3πr^3volume=2/33.141.5^3=7065litre emptying rate = 25/7 l per secondlet the time taken to empty half volume = t 25/7t=1/2volumet=989seconds. Is the answer is correct

A hemispherical tank full of water is emptied by a pipe at the rate of 25/7 litre per sec .How much time will it take to empty half the tank if it 3 in diameter ?

Answer»

Diameter = 3mradius = 3/2 = 1.5 m

volume=2/3πr^3volume=2/3*3.14*1.5^3=7065litre

emptying rate = 25/7 l per secondlet the time taken to empty half volume = t

25/7*t=1/2*volumet=989seconds.

Is the answer is correct