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Height of a right circular cylinder is i...

Height of a right circular cylinder is increasing at the rate of `4 cm //sec`, and its base radius decreasing at `3 cm //sec`. When the base radius is 20 cm and height 10 cm, volume of the cylinder is changing at the rate of

A

`800 pi cm^(3)//sec`.

B

`-800 pi cm^(3)//sec`.

C

`400pi cm^(3)//sec`.

D

`200 pi cm ^(3)//sec`.

Text Solution

Verified by Experts

The correct Answer is:
C
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MARVEL PUBLICATION-APLICATIONS OF DERIVATIVES-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP - II : CHAPTER 12)
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