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Railways Quantitative Aptitude Average Sample Paper Average & Problems on Ages Sample Test Paper-7

  • question_answer
    Eighteen years ago, a father was three times as old as his son. Now the father is only twice as old as his son. Then the sum of the present ages of the son and the father is:

    A)  54                   

    B)  72

    C)  105                 

    D)  108

    Correct Answer: D

    Solution :

    [d] Let the present ages of the father and son be 2x and x years respectively. Then, \[(2x-18)=3(x-18)\Leftrightarrow x=36.\] \[\therefore \] Required sum \[=(2x+x)=3x=108\,\,years.\]


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