# Water is flowing at the rate of 15km/hr through a cylindrical pipe of radius 7cm into a rectangular tank which is 50m long and 44m wide. In how many hours will the water level of the tank raise by 21cm

1
by tejerter

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by tejerter

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radius= 7 /100m

volume= pie 73.5x =11×21x

volume of rectangular park=50×44×21/100

22×21

there fore

11×21x = 22 × 21

ie x= 2

the answer is two hours