Question

The ratio of boys to girls in a class is 5:7 There are 36 students in the class. How many more girls than boys?

Answer 1

The answer is 6.

Explanation:

This is how I do it, there are other ways too but,

add up the ratio 5+7=12

36 (students total) divided by 12 = 3

find the difference between the ratio, which is 2.

multiply 2 by 3 and you get 6.