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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?
To solve the given problem
We can consider,
30% are girls of 30 people
70% are boys in 30 people
In order to get the number, we just multiply the total number
of people with the percentage of the designated target populace.
1. 30 x 0.3 =
9 girls 2. 30 x 0.7 =
21 boys 3. 21 boys + 9
girls = 30 people
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