Question

In class, the ratio of boys to girls $4:3$. If there are $18$ girls, then find the number of boys in class.

Answer 1

Let $x$ be the number of boys in the class.

Therefore,

$\frac{x}{18}=\frac{4}{3}$

$\Rightarrow x=\frac{4\times 18}{3}=6\times 4=24$

Hence there are $24$ boys in the class.