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IF the volume of a spherical balloon is ...

IF the volume of a spherical balloon is increasing at the rate of `900cm^3//sec`, then the rate of change of radius of balloon at an instant when radius is 15cm [in `cm//sec`] is

A

`22/7`

B

22

C

`7/22`

D

None of these

Text Solution

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The correct Answer is:
C
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