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The volume of a cube is increasing at th...

The volume of a cube is increasing at the rate of 9 `"cm"^(3)//sec`. How fast is surface area increasing when the length of an edge is 10 cm ?

A

`1.8 cm^2//s`

B

`2.7cm^2//s`

C

`3.6 cm^2//s`

D

None of these

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