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4 March, 05:39

The ratio of boys to girls in a class room is 5 to 7. If there are 30 boys then how many girls are there

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  1. 4 March, 05:41
    0
    The ratio of boys to girls to 5:7

    Let the number of boys be 5x

    Let the number of girls be 7x

    5x = 30

    x = 6

    Now just plug in 6 for the x in 7x

    and number of girls 7 x 6 = 42
  2. 4 March, 06:04
    0
    The answer would be 42 girls
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