Find out the average of first 15 odd numbers

 

  1. 18
  2.  14
  3.   20
  4.   15

 

mohitverma Default Asked on 28th July 2015 in Maths.
Add Comment
  • 1 Answer(s)

    Answer: (4) 15
    Explanation:-
    The first  15 odd numbers are 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29,
    The sum of odd numbers = (n )2
    Where, n – number the odd numbers.Then, Sum of first 15 odd numbers = (15)2
    = (15)2
    = 225

    Then, the average of first 15 odd numbers = 225/15
    = 15
    Hence, the answer is (4) 15.

    Anurag Mishra Professor Answered on 28th July 2015.
    Add Comment
  • Your Answer

    By posting your answer, you agree to the privacy policy and terms of service.