# The ratio of boys to girls in the Science Club is 3:5. If there are 60 girls, how many boys are there?

Nov 18, 2016

$36 \text{ boys}$

#### Explanation:

Express the ratio in fractional form.

Let the number of boys be x.

$\Rightarrow \frac{3}{5} = \frac{x}{60}$

cross-multiply.

$\Rightarrow 5 x = 180$

$\Rightarrow x = \frac{180}{5} = 36$

There are 36 boys in the Science Club