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2 February, 08:57

12.5% of what number is 20

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  1. 2 February, 09:14
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    12.5 / 100 = 20 / X

    multiply 100 x 10 to get 2000

    multiply 12.5 x X to get 12.5X

    divide both 2000 and 12.5X by 12.5 to get 2000 / 12.5 = X

    2000 / 12.5 = 160 therefore X = 160

    check your answer by multiplying 0.125 by 160 to get 20
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