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Railways R.R.C. (Chennai) Solved Paper Held on 1st Shift 2-11-2014

  • question_answer
    Average of 10 numbers is zero. At most how many numbers may be greater than zero?

    A) 10                                

    B) 1

    C) 5                                 

    D) 9

    Correct Answer: C

    Solution :

    \[~-5,\,\,-4,\,\,-3,\,\,-2,\,\,-1,\,\,+1,\,\,+2,\,\,+3,\,\,+4,\,\,+5\] \[\therefore \]there are 5 numbers


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