The ratio between the present ages of A and B is 5:3 respectively. The ratio between A’s age 4 years ago and B’s age 4 years hence is 1:1. What is the ratio between A’s age 4 years hence and B’s age 4 years ago?

One Answer on this Question

  1. x = 5/3y
    x – 4 = y + 4
    x – 8 = y
    x = 5/3 * (x-8)
    5/3x – 40/3 = x
    2/3x = 40/3
    2x = 40
    x = 20
    y = 20 – 8
    y = 12
    x + 4 = 24
    y – 4 = 8
    Ratio is 24:8 , so 3:1

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