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21 April, 06:38

Susan is 5 years older than phen is now. in n years susan will be twice as old as phineas know. if susan is 22 years now what is the value of n

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  1. 21 April, 06:41
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    We can write two equations:

    s = p + 5

    s + n = 2 p

    And we know that: s = 22 (Susan is 22 years old now)

    22 = p + 5

    p = 22 - 5

    p = 17

    22 + n = 2 * 17

    22 + n = 34

    n = 34 - 22

    n = 12

    We can prove it:

    22 + 12 = 34 = 2 * 17 (correct)

    Answer: n = 12.
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