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

  • question_answer
    A man's age is 125% of what it was 10 years ago, but \[83\frac{1}{3}%\] of what it will be after 10 years. What is his present age?

    A)  30 yrs

    B)         40 yrs

    C)  50 yrs  

    D)  60 yrs

    Correct Answer: C

    Solution :

    [c] Let the present age be x yrs. Then 125% of (x ? 10) = x; and \[=83\frac{1}{3}%\] of (x + 10) = x \[\therefore \] 125% of (x ? 10)\[=83\frac{1}{3}%\] of (x + 10) \[\frac{5}{4}(x=10)=\frac{5}{6}(x+10)\] or, \[\frac{5}{4}x-\frac{5}{6}x=\frac{50}{6}+\frac{50}{4}\] or, \[\frac{5x}{12}=\frac{250}{12}\therefore x=50\,\,yrs.\]


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