Question

If $x$ is $90$% of $y$, then what percent of $x$ is $y$?

• A. $90$ $\%$
• B. $190$ $\%$
• C. $101\frac{1}{9}$ $\%$
• D. $111\frac{1}{9}$ $\%$

Answer 1

The correct option is D $111\frac{1}{9}$ $\%$

Given, $x$ is $90\%$ of $y$

Therefore, $x=\frac{90}{100}y$

$\Rightarrow y=\frac{100}{90}x$
$\Rightarrow \frac{1}{100}\times \frac{10000}{90}x=\frac{1000}{9}$ $\%$ of $x=$ $111\frac{1}{9}$ $\%$ of $x$