A group of scouts has 8 boys and 24 girls. What is the ratio of girls to all children?

3:3

3:4

3:2

None of these

To find the ratio of girls to all children:

Number of girls = 24

Total number of children = 8 (boys) + 24 (girls) = 32

Ratio of girls to all children = 24/32 = 3/4