Each edge of a cube is expanding at the rate of $1 \mathrm{~cm} / \mathrm{sec}$. Then the rate (in…

Each edge of a cube is expanding at the rate of $1 \mathrm{~cm} / \mathrm{sec}$. Then the rate (in $\mathrm{cc} / \mathrm{sec}$.) of change in its volume, when each of its edge is of length $5 \mathrm{~cm}$ is
  1. $25$
  2. $75$
  3. $125$
  4. $175$

Solution

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Asked in: AP EAMCET 2017 (24 Apr Shift 2)

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