Question

In the class, there are 39 boys and 65 girls. If the number of boys increased by 9 and the number of girls decreased by 5, then what is the ratio of the number of boys to the number of girls in class?

Answer 1

The number of boys in the class is 39 and number of girls in the class is 65.
$\therefore$ Total number of students is equal to 39 + 65 = 104.
If the number of boys are increased by 9 and number of girls decreased by 5, then
Number of boys = 39 + 9 = 48
And the number of girls = 65 – 5 = 60.
So, the ratio of number of boys to the number of girls = $\frac{48}{60}=\frac{4}{5}=4:5$.