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24 July, 14:45

In a class of 18 there are 2 girls for every 1 boy. how many girls are there?

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Answers (2)
  1. 24 July, 15:31
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    X-girls y-boys

    if x+y=18 and 2x=y then

    x+2x=18

    3x=18

    x=6
  2. 24 July, 18:10
    0
    2 girls = 1 boy

    12 girls = 6 boys

    12 + 6 = 18

    girls = 12
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