Question

If there are 5 girls to every 9 boys in a class of 70, how many boys are there?

Answer 1

Explanation:

The girls in the class will be 45.

For every 7 boys, 9 girls…

Meaning if we were to group that, we’ll have a group of 16 people(9 girls, 7 boys)

In a class of 80.

To get our number of girls, we can divide the full amount by 16.

(number of groups formed) : 80/16= 5

5x9= girls

5x7=boys

Boys will be 35 and girls will be 45.