Question

In a class of $60$ students, the number of girls is one third the number of boys. Find the number of girls anf boys in the class.

Answer 1

Let $x$ be the number of boys in the class
So. the number of girls is $60-x$
$ACQ$,
$\Rightarrow 60-x=\frac{x}{3}$
$\Rightarrow 180-3x=x$
$\Rightarrow 4x=180$
$\Rightarrow x=\frac{180}{4}$
$\Rightarrow x=45$
The number of boys in the class are $45$.
Hence, the number of girls will be $60-45=15$