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MathematicsMathematics
10 May, 20:19

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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  1. 10 May, 20:34
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    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

    Hence, there are 21 boys.
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