156k views
4 votes
30 girls and boys have planned for a picnic. There is a ratio of 3 girls to 7 boys. How many boys are there?

2 Answers

2 votes
I got 21. For every 3 there was 7, so put down 3, add 7 and do such untiollyour total value is 30.
User Jimmy Johnson
by
6.7k points
4 votes
should be 21 boys because 7+7+7 equal 21 and 3+3+3 equal 9 which equals 30
User Graphileon
by
7.3k points