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Railways R.R.C. (Chennai) Solved Paper Held on 2nd Shift 9-11-2014

  • question_answer
    The mean age of 5 children is 12 years. If four of them are 6, 11, 13 and 16 years, what is the age the 5th childs?

    A) 12 years           

    B) 13 years

    C) 14 years

    D) 15 years

    Correct Answer: C

    Solution :

    Age of the 5th child                                  \[=12\times 5-(6+11+13+16)\] \[=60-46\] \[=14\,\,years\]


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