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20 March, 19:33

At the park, 4/7 of the children are boys. if there are 8 boys at the park, how many are girls?

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  1. 20 March, 19:52
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    6 because 4/7 boys means a ratio of 4:3, so twice 4 to make 8 means twice 3 to make 6.
  2. 20 March, 20:02
    0
    There are 4/7 boys, so there are 3/7 girls.

    Let the total number of children be x.

    4/7x = 8

    1/7x = 8 : 4

    1/7x = 2

    3/7x = 2 x 3

    3/7x = 6

    There are 6 girls.
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