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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

`80pi` cu. m/sec

B

`144pi` cu. m/sec

C

80 cu. m/sec

D

64 cu. m/sec

Text Solution

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The correct Answer is:
A
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