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

`(27pi)/4(2x+3)^2`

Text Solution

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The correct Answer is:

C

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