Subject

    Quantitative Aptitude

    Topic

    Ratio

    The present ages of three persons are in the ratio of 4:7: Eight years ago, the sum of their ages was What are their present ages in years?

    ক)
    8,20,28
    খ)
    16,28,36
    গ)
    20,35,45
    ঘ)
    12,21,27

    Explanation

    Let their present ages be 4 x , 7 x and 9 x years respectively. Then, (4 x - 8) + (7 x - 8) + (9 x - 8) = 56 20 x = 80 x = 4. Their present ages are 4 x = 16 years, 7 x = 28 years and 9 x = 36 years respectively.

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