Subject

    Quantitative Aptitude

    Topic

    Age

    The present ages of three persons in proportions 4 : 7 : Eight years ago, the sum of their ages was Find their present ages (in years).

    ক)
    8, 20, 28
    খ)
    16, 28, 36
    গ)
    20, 35, 45
    ঘ)
    None of these

    Explanation

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

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