# 42 is 21% of what number?

May 31, 2018

$200$

#### Explanation:

Finding the answer is similar to finding 21% of $42$.

First:

$\frac{42}{x} = \frac{21}{100}$

Then you want to cross multiply:

$42 \times 100 = 21 \times x$

$\frac{42 \times 100}{21} = x$

$\frac{4200}{21} = x$

$200 = x$

The answer is $200$.

Jun 1, 2018

$200$

#### Explanation:

Let the number be $x$.

Then we have:

21%*x=42

$0.21 \cdot x = 42$

$x = \frac{42}{0.21}$

$= 200$

So, the number is $200$.