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The radius of a cylinder is increasing a...

The radius of a cylinder is increasing at the rate of `3ms^(-1)` and its altitude is decreasing at the rate of `4ms^(-1)`. The rate of change of volume when radius is `4m` and altitude is 6m is

A

`144 m^(3)/sec`

B

`64 pi m^(3)//sec`

C

`80 pi m^(3)//sec`

D

`-80 pi m^(3)//sec`

Text Solution

Verified by Experts

The correct Answer is:
C
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