Question

1. The ratio of boys to guls is 3 to 2. If there are 12 boys how many girls are there?

Answer 1

8

Explanation:

3:2=12:x

2*12=24

3*x=24

therefore, x=8

Answer 2

8 girls

Explanation:

We want write a ratio to solve

3 boys 12 boys

------------ = -------------------

2 girls x girls

Using cross products

3x = 2*12

3x = 24

Divide by 3

3x/3 = 24/3

x = 8

There are 8 girls