Question

The ratio of boys to girls in a high school is found to be three to five. If a class has 12boys, how many girls would you expect to be in the class?

Answer 1

20 girls

Explanation:

Divide 12 by 3 : 12/3 = 4

Multiply 4 by 5 : 4*5 = 20

Answer 2

20 girls

Explanation:

boys: girls

3 5

There are 12 boys

12/3 = 4

Multiply each side by 4

boys: girls

3*4 5*4

12 20