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The bas radius of a cylindrical vessel f...

The bas radius of a cylindrical vessel full of oil is 30 cm. Oil is drawn at the rate of 27000 cubic cm per minute. The rate at which the level of he oul is falling in the vessel is

A

`30//pi` cm/sec

B

`pi` cm/sec

C

`pi//30` cm/sec

D

30 cm/sec

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-APPLICATIONS OF DIFFERENTIATION-EXERCISE 1C (RATE OF CHANGE)
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