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If a spherical balloon has a variable di...

If a spherical balloon has a variable diameter `(3x+9//2)`., then the rate of change of its volume w. r. t x is

A

`27pi (2x +3)^2`

B

`(27pi)/(16) (2x+3)^2`

C

`(27pi)/(8) (2x+3)^2`

D

None of these

Text Solution

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The correct Answer is:
C
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