205k views
21 votes
On the swim team, for every 10 girls there are 7 boys. If there are 21 boys on the swim team, how many girls are there?

User JudoWill
by
4.6k points

1 Answer

7 votes

Answer:

30 girls

Explanation:

Every 10 girls there are 7 boys.

So if there are 3 groups of 7 boys, there will be 30 girls.

Check:

10 girls: 7 boys

+10 girls: 7 boys

+10 girls: 7 boys

= 30 girls: 21 boys

User Belrog
by
5.1k points
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