The surface area of a spherical balloon ...

The surface area of a spherical balloon is increasing at the rate of `2" cm"^(2)//"sec"`. At what rate is the volume of the ballon is increasing, when the radius of the ballon is 6 cm ?

A

`6 cm^(3)"/min"`

B

`3 cm^(3)"/min"`

C

`36 cm^(3)"/min"`

D

`18 cm^(3)"/min"`

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The correct Answer is:

A

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