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Math

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Rahul's father is 3times as old as rahul.four year ago,his father was 4times as old as rahul.how old is rahul?
Ans is 12yrs

  • Math -

    i did this question a very long time ago but i kind of rember it and i think the answer is 12 but im not sure sorry

  • Math -

    Cn u tell me soltn all my qustn..

  • Math -

    If the father is age f and the son age s,

    f = 3s
    (f-4) = 4(s-4)
    3s-4 = 4s-16
    s = 12

    so, son is 12, father is 36.
    4 years ago, son was 8, father was 32.

  • Math -

    Thanx a lot steve sir..

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