$\sqrt[3]{\dfrac{0.064}{0.008}}$ equals

$\sqrt[3]{\dfrac{0.064}{0.008}}$ equals
  1. $2$
  2. $0.2$
  3. $8$
  4. $0.8$

Solution

$\dfrac{0.064}{0.008} = 8$, $\sqrt[3]{8} = 2$.

Asked in: IMO

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