"A   cylindrical water tank of diameter 1.4m and height 2.1m is being fed by a   pipe o
Channel: Doubtnut
Date: 2020-07-05

"A
 
  cylindrical water tank of diameter 1.4m and height 2.1m is being fed by a
 
  pipe of diameter 3.5cm through which water flows at the rate of 2 metre per
 
  second. In how much time the tank will be filled?"