A cylindrical water tank of diameter 1 4m and height 21

A cylindrical water tank of diameter 1 4m and height 21
| A cylindrical water tank of diameter 1. 4m and height 2.1 m is being fed by a pipe of diameter 3.5cm through which water flows at the rate of 2 metres per second. In how much time the tank will be filled?
  

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Right Answer is:

SOLUTION

Diameter of cylindrical tank= 1.4m
∴ Radius(r) = 1.42=0.7m
Height(h) = 2.1 m
  

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