Question

If $8.5\%$ of a number is $51$, then find the number.

Answer 1

Let the required number be $x$.
$\therefore 8.5\%$ of $x=51$
or $\frac{85}{10}\%$ of x=51
or $\frac{85}{10}\times \frac{1}{100}\times x=51$
or $x=\frac{51\times 100\times 10}{85}=3\times 100\times 2=600$
Thus, $8.5\%$ of $600$ is $51$