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?

Question

12 boys
24 boys
18 boys
32 boys

Answer 1

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.