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The slant height of a cone is fixed as 7...

The slant height of a cone is fixed as 7 cm. If the rate of increase in tis height os 0.3 cm/sec, then the rate of increase of volume when height 4 cm is

A

`pi//2` cc/sec

B

`pi` cc/sec

C

`pi//5` cc/sec

D

`pi//10` cc/sec

Text Solution

Verified by Experts

The correct Answer is:
D
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