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Coffee is draining from a conical filter, height and diameter both 15cms into a cylindrical coffee pot diameter 15cm. The rate at which coffee drains from the filter into the pot is 100cu cm/min. The rate in cms/min at which the level in the pot is rising at the instant when the coffee in the pot is 10cm, is
A. |
`16/(9pi)` |
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B. |
`25/(9pi)` |
C. |
`32/(9pi)` |
D. |
`8/(9pi)` |