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17 September, 21:36

There are 12 students in a class who are performing at the school concert. This represents 40% of the class. How

many students are in the class?

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Answers (2)
  1. 17 September, 21:50
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    Answer

    30

    Step-by-step explanation:

    If 12 students = 40% then 24 Students=80% so if half of 12 is 6 then half of 40% is 20% so then I add them 40%+40%+20%=100% then 12+12+6=30. Your welcome
  2. 17 September, 21:56
    +1
    This means 4/10 of the class is 12. Letting the total number of students in a class be x, 4/10x=12 so 4x=120. x=30
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