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20 October, 16:49

Janet is three years older than her sister Julie. Janets brother is 8 years younger Than Her sister Julie. the sum of all of their ages is 55 years

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  1. 20 October, 16:55
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    x + x + 3 + x - 8

    3x - 5 = 55

    3x = 60, x = 20

    Since we put Julie as x, we put Janet at x + 3, and the brother is x - 8 (8 years younger)

    Julie is 20

    Janet (x + 3) = (20 + 3) = 23

    Brother (x - 8) = (20 - 8) = 12
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