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A cylindrical tank of radius 10 m is bei...

A cylindrical tank of radius 10 m is being filled with wheat at the rate of 314 cubic metre per hour. Then the depth of the wheat is increasing at the rate of:

A

`1m/h`

B

`0.1m/h`

C

`1.1m/h`

D

`0.5m/h`

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