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Railways R.R.C. (Kolkata) Solved Paper Held on 2nd Shift 27-10-2013

  • question_answer
    X is 36 years old and Y is 16 years. In how many years will X be twice as old as Y?

    A) 1 year              

    B) 2 years

    C) 3 years             

    D) 4 years

    Correct Answer: D

    Solution :

    Let after m years, X will be twice as old as Y. As per question? \[(X+m)=2\,\,(Y+m)\] \[36+m=2\,\,(16+m)\] \[36+m=32+2m\] \[m=4\,\,years\]


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