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30 July, 05:49

The ratio of boys to girls on a school trip was 5:7 there were 56 girls how many boys were on the school trip

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Answers (2)
  1. 30 July, 06:42
    0
    Equation will be like;

    5:7::x:56

    5/7=x/56

    x=5/7*56

    x=40
  2. 30 July, 06:53
    0
    5/7 = x/56 ... 5 boys to 7 girls = x boys to 56 girls

    cross multiply

    (7) (x) = (56) (5)

    7x = 280

    x = 280/7

    x = 40 ... there were 40 boys on the school trip
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