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26 February, 15:40

Paul is two years younger than Patricia. Daniel is 25% older than Patricia. Ten years ago, Daniel was 50% older than Patricia. How old is Paul currently?

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  1. 26 February, 18:30
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    In this question, you can get 3 formula which was

    1. Paul = Patricia - 2

    2. Daniel = Patricia * 1.25

    3. Daniel - 10 = (Patricia-10) * 1.5

    Daniel - 10 = 1.5 Patricia - 15

    Daniel = 1.5 Patricia - 5

    If you insert the 2nd equation into the 3rd, then you will get

    1.25 Patricia = 1.5 Patricia - 5

    0.25 Patricia = 5

    Patricia = 20

    Then insert the result into 1st equation

    Paul = Patricia - 2 = 20-2 = 18 years
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