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9 June, 17:03

25 is 32% of what number?

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Answers (2)
  1. 9 June, 17:24
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    You can solve that by cross multiplication.

    If 25 is 32%, then x is 100%:

    25/32 = x/100

    25*100 = 32*x

    x = 25*100/32 = 78.125

    To check the solution: 78.125 * (32/100) = 25

    For this kind of question you just have to multiply times 100/percentage, that's what you always arrive to with the cross multiplication.

    So if they asked you, 50 is 25% of what? You'd do 50 * (100/25) = 200.

    It's the reverse of finding the percentage of a number.
  2. 9 June, 17:32
    0
    You would set up the proportion 25/X = 32/100.

    25*100 is 2500, 32*x is 32x

    2500 = 32x

    /32 / 32 dividing by 32 on both sides

    78.125 = x
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