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19 July, 10:00

What is the answer to in a science class the girl to boy ratio is 3 to 7 out of 50 student how many are boys?

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  1. 19 July, 10:03
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    If the ratio of girls to boys is 3:7,

    then: 3/10 of the class are girls and 7/10 of the class is boys

    Note: 3+7 = 10

    If the class has a total of 50 students we can find the number of boys by doing this:

    (total number of kids) x (fraction of the kids that are boys) = # of boys

    50 x (7/10) = 35

    There are 35 boys in the class.
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