Divide 105 in two parts such that 1 third of one part is equal to 1 forth of other part

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  1. let the two number be x and y
    then x+y = 105 ---> y = 105-x

    x/3 = y/4
    times 12
    4x = 3y
    4x = 3(105-x)
    4x = 315 - 3x
    x = 45 , -----> y = 55

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