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Water is being pumped out through a c...

Water is being pumped out through a circular pipe whose internal diameter is 7 cm , If the flow of water is 72 cm per second , how many litters of water are being pumped out in one hour ?

A

9999.2 letres

B

9898.2 litres

C

9979200 `cm^(3)`

D

9979 . 2 liters

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