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8 September, 08:05

In class of 30 students 14 are boys. If 2 boys drop out of the class and 2 girls are added what fraction of the class will be boys

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  1. 8 September, 11:25
    0
    30 students ... 14 are boys ... that means (30 - 14) = 16 are girls

    if 2 boys are dropped ... 14 - 2 = 12 boys

    and 2 girls are added ... 16 + 2 = 18 girls

    fraction of the class that are boys is : 12/30 which reduces to 2/5 <==
  2. 8 September, 12:03
    0
    14/30 = amount of boys

    (14-2) / 30

    12/30=new amount

    16/30 = original amount of girls

    (16+2) / 30=new amount of girls

    12/30=6/15=2/5

    2/5 is your answer
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