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Water is being poured on to a cylindrica...

Water is being poured on to a cylindrical vessel at the rate of `1 m^3/min`. If the vessel has a circular base of radius 3 m, find the rate at which the level of water is rising in the vessel.

A

`1//9pi` m/min

B

`0pi` m/min

C

`1//3pi` m/min

D

`3pi` m/min

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The correct Answer is:
A
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