Question

Out of $144$ students in a school $\frac{4}{9}$ are boys. Find the number of girls in the school.

• A. $64$
• B. $80$
• C. $36$
• D. $96$

Answer 1

The correct option is B $80$

Given In a school $144$ students

$\frac{4}{9}$ are boys $=\frac{4}{9}\left(144\right)=64$

No. of girls $=x$

Total students $=Boys+girls$

$144=64+x$.

$144-64=x=80$

$\therefore$ No. of girls $=80$.