Question

In a school $\frac{4}{9}$ of students are boys and the number of girls is $775.$ find the number of boys in the school.

Answer 1

Let the total no. of students be $x.$

No. of boys $=\frac{4x}{9}$

No. of girls $=\frac{5x}{9}$

Number of girls is given as $775.$

$\therefore \frac{5x}{9}=775$

$\Rightarrow x=\frac{775\times 9}{5}$

$x=1395$
No. of boys $=\frac{4}{9}\times 1395=620$
Therefore, no. of boys are $620.$