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28 April, 16:59

The Johnson twins were born twelve years after their older sister. This year, the product of the three siblings' ages is exactly 1663 more than the sum of their ages. How old are the twins?

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  1. 28 April, 20:28
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    Twins' age = S - 5

    (S = Sister's Age)

    S (S - 5) ² = S + S - 5 + S - 5 + 4450

    S (S - 5) ² = 3S - 10 + 4450

    S (S - 5) ² = 3S + 4440
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