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A cylindrical vessel of radius 0.5 mts i...

A cylindrical vessel of radius 0.5 mts is filled with oil at the rate of `0.25 pi c.mts/min`. The rate at which the surface of the oil is increasing is

A

1 mts/min

B

2 mts/min

C

5 mts/min

D

1.25 mts/min

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The correct Answer is:
A
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