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A container is in the shape of an inverted cone has height 8m and radius 6m at the top. If it is filled with water at the rate of `2m^(3)`/minute, how fast is the height of water changing when the level is 4m?

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The correct Answer is:
`(2)/(9pi)=(dh)/(dt)`
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-APPLICATION OF DERIVATIVES-Exercise-10(e)
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