Q56.solution pls.
Q.56. A balloon is pumped at the rate of 4 per second. What is the rate at which its surface area increases when its radius is 4 cm ?
(A) 1 /sec
(B) 2 /sec
(C) 3 /sec
(D) 4 /sec
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https://www.meritnation.com/ask-answer/question/the-volume-of-the-spherical-balloonis-increasing-at-the-r/application-of-derivatives/4859406
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https://www.meritnation.com/ask-answer/question/the-volume-of-the-spherical-balloonis-increasing-at-the-r/application-of-derivatives/4859406
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