• # question_answer If $x$ is $z%$ of y. Then, y will be how much per cent of x ? A)  $\frac{1000}{z}$ B)  $\frac{100}{{{z}^{2}}}$ C)  $\frac{1000}{{{z}^{2}}}$ D)  $\frac{10000}{z}$

$\frac{x}{y}\times 100=z$ $\Rightarrow$ $\frac{y}{x}=\frac{100}{z}$ $\Rightarrow$ $y=\frac{100}{z}=\text{of}\,\,x$ $\Rightarrow$ $y=\frac{10000}{z}%\,\,\text{of}\,x$