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Railways R.R.C.(Ranchi) Solved Paper Held on 24-11-2013

  • question_answer
    How many odd numbers are there from 1 to 81?

    A) 42                                

    B) 41

    C) 40                                

    D) 43

    Correct Answer: B

    Solution :

    There are odd numbers from 1 to 81 \[=[\frac{81-1}{2}+1]\] \[=\frac{80}{2}+1\] \[=40+1=41\]


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