Math

In a school there are 7 girls to every 5 boys.If there are 120 more girls than boys.How many pupils are there in tge school?

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  1. g = number of girls

    5g/7 = number of boys

    g - 5g/7 = 120

    2g/7 = 120

    g/7 = 60

    g = 420
    then
    boys = (5/7)420 = 300
    and
    420 + 300 = 720 total

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