if the ratio of girls to boys in the school is 5:6 and there are 20 girls in fifth grade, how many boys are in the fifth grade?
12 boys
24 boys
18 boys
32 boys
The ratio of girls to boys in the school is 5:6, which means that for every 5 girls, there are 6 boys.
Since we know that there are 20 girls in fifth grade, we can set up a proportion using the ratio:
5 (girls) / 6 (boys) = 20 (girls) / x (boys)
Cross-multiplying, we get:
5x = 20 * 6
5x = 120
Dividing both sides by 5, we find that:
x = 120 / 5
x = 24
Therefore, there are 24 boys in the fifth grade.
So the correct answer is 24 boys.