Question

If $72$k is a perfect cube, then the value of k is?

Answer 1

$\begin{array}{c}Forperfectcubicrootof72\times K\\ 72K=2\times 2\times 2\times 2\times 3\times 3\times K\\ ifK=3Ans-\\ Thenitisperfectcubicroot\\ 2\times 2\times 2\times 3\times 3\times 3=2^3{.3}^3=6^3=216\end{array}$