Question

What percent is $9$ out of $20$?

Answer 1

$9$ out of $20=45\%$

Explanation:

"Perçent" or "$\%$" means "out of $100"$ or "per ${100}^{\prime \prime }$, Therefore $x\%$ can be written as $\frac{x}{100}$

We can write and solve this as:

$\frac{x}{100}=\frac{9}{20}$

$\therefore 100\times \frac{x}{100}=100\times \frac{9}{20}$

$\therefore x=5\times 9$

$\therefore x=45\%$

Thus, 9 out of $20=45\%$