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22 February, 18:12

Janine is twice as old as your brother Mark if the sum of their ages of 24 how old is Janine

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  1. 22 February, 18:57
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    J = 2*M J=Janine, M=Mark

    J+M=24

    2*M+M=24

    3M=24

    3M/3=24/3

    M=8

    2*8=J

    J=16

    Janine is 16.
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