Question

In a class of $55$ students, the no of girls is $5/6$ times the number of boys. Find the number of boys and girls in the class

Answer 1

Let no. of girls$=g$

No. of boys$=b$

Given $g+b=55$

and $g=\frac{5}{6}b$

$b=\frac{6}{5}g$

$g+\frac{6}{5}g=55$

$\frac{11g}{5}=55$

$g=25$

$b=\frac{6}{5}\times 25=30$

$\therefore$No. of boys$=30$ and no. of girls$=25$