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29 August, 05:03

Use the ratio of boys and girls and the class size to find the number of boys and number of girls in each class

3:5, 80

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Answers (2)
  1. 29 August, 06:26
    0
    10 because 3+5=8 and 80 divided by 8 equals 10.
  2. 29 August, 09:02
    0
    Number of boys: 3 x 10 = 30

    Number of girls: 5 x 10 = 50

    30 + 50 = 80 which is the total class size

    So there are 30 boys and 50 girls
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