If there is an error of \( \mathrm{k} \% \) in measuring the edge of a cube then the per cent er...

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If there is an error of \( \mathrm{k} \% \) in measuring the edge of a cube then the per cent error in estimating its volume is
(a) \( k \)
(b) \( 3 \mathrm{k} \)
(c) \( \frac{k}{3} \)
(d) none of these
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