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1 November, 17:26

Mavis is 5 years older than her brother. Five years ago she was 2 times older than her brother. How old is each now?

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  1. 1 November, 17:53
    0
    15 and 10 because

    five years ago he would be 10 and the brother would be 5 and 10 is double 5
  2. 1 November, 20:14
    0
    M=Mavis

    B=Brother Age

    M=B+5

    Five years ago ...

    M-5

    B-5

    Since Mavis is twice her brother age you have to multiple by 2

    (M-5) = 2 (B-5)

    Substitute M=B+5

    (B+5-5) = 2B-10

    B=2B-10

    -B=10

    10+5=15

    Mavis is 15

    Brother is 10
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