Question

The ratio of boys to girls at a movie is 4:7. If there are 21 girls, how many boys are at

the movie?
There are
boys at the movie.

Answer 1

12 boys


if there’s 21 girls you times 7 by 3 so you do the same for the boys times it by three and get 12.

Answer 2

Answer: 12 boys at the movie

Explanation:

The ratio of boys to girls is 4:7. There are 21 girls at the movie. This is 3 times more than the simplified ratio of girls to boys. Thus, to find the answer, multiply 4 by 3 to get 12 boys at the movie.