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12 January, 00:05

Mary, who is 16 years old, is four times as old as her brother. how old will mary be when she is twice as old as her brother?

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Answers (2)
  1. 12 January, 01:36
    0
    Mary will be 8 years old
  2. 12 January, 02:38
    0
    Mary will be 18 when she is twice as old as her brother
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