Find the average of first 91 natural numbers.

  1. 45
  2.  49
  3.  6
  4.  46
Gaurav Pal Default Asked on 29th July 2015 in Maths.
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  • 1 Answer(s)

    Answer: (4) 46
    Explanation:-
    Formula-
    The sum of natural numbers = n(n + 1)/2
    Where, ‘n’ denotes the numbers observation.

    Then, the sum of first 91 natural numbers = 91 (91 + 1)/2
    = 91 x 92/2
    = 91 x 46
    = 4186
    Now, the average of first 91 natural numbers = 4186/91
    = 46
    Hence, the answer is (4) 46.

    Anurag Mishra Professor Answered on 29th July 2015.
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