Question

The ratio of girls to boys in class is 9 to 7 and there are 80 students in the class. How many girls are in the class?

Answer 1

let the number of girls be 9x
number of boys be 7x
total students is 80
then 9x+ 7x=80
16x=80
x= 80/16=5

girls is 9x = 9×5=45
boys is 7x = 7×5=35

hope it helps u in any way.

Answer 2

let no. of boys be 7x and girls be 9x .
total no. of students =80
so , 9x+7x = 80 students .
16x=80
x=5.

no .of girls= 9x
9×5
45.