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

User Aquaraga
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3 times 10 is 30, 7 times 10 is 70. There are 30 girls and 70 boys.
User Amzath
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