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The volume of a ball increases at 2pic.c...

The volume of a ball increases at `2pic.c//sec`. The rate of increase of radius when the volume is `288pi` c.cms is

A

1/36 cm/sec

B

1/72 cm/sec

C

1/18 cm/sec

D

1/9 cm/sec

Text Solution

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The correct Answer is:
B
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