The Average of First 40 Natural Number is:

  1. 20
  2.  20.5
  3.  40
  4.  40.5
vijay Professor Asked on 2nd August 2015 in Maths.
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1 Answer(s)

Answer: (2) 20.5
Explanation:-
Formula-

The sum of natural number = n (n + 1)/2
Where, n – number of natural number.
Then, the sum of first 40 natural number = 40 (40 + 1)/2
= 20 x 4 1
= 820
Now, the average of 40 natural number = 820/40
=  20.5
Hence, the answer is (2) 20.5.

Anurag Mishra Professor Answered on 2nd August 2015.
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