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31 October, 09:06

harold is a twice as old as jack, who is three years older than Dan. If Harold's age is five times Dan's age, how old in years is jack?

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Answers (2)
  1. 31 October, 09:25
    0
    Jack is 5 years old, WOW!
  2. 31 October, 09:28
    0
    Answer

    1 7/8 years or 1.875 years

    Explanation

    Let Jack's age be x years.

    Then;

    Harold = 2x years

    Dan = 2x - 3

    But Harolds age is thre times Dan's age.

    ∴ 2x = 5 (2x - 3)

    2x = 10x - 15

    2x - 10x = - 15

    -8x = - 15

    8x = 15

    x = 15/8

    = 1 7/8 years or 1.875 years
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