A spherical snow ball is melting so that...

A spherical snow ball is melting so that its volume is decreasing at the rate of 8 cc/sec. Find the rate at which its radius is decreasing when it is 2 cm.

A

`(1)/(pi)` cm/sec

B

`(1)/(2pi` cm/sec

C

`pi` cm/sec

D

`2pi` cm/sec

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The correct Answer is:

B

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