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14 August, 12:57

Girls to boys at concert 2:7. 250 more girls than boys, how many boys

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  1. 14 August, 13:11
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    The Girls:Boys ratio of 7:2 means that there are 7 girls for every boy.

    As there are 250 more girls this relates to the 7-2 part of the ratio.

    We can then divide 250 by 5 and multiply by 2 to get the number of boys as 100 boys
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