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  • Average - 1
  • What is the average of first n whole numbers?
Multiple choice

What is the average of first n whole numbers?

  1. (n - 1)/2

  2. (n + 1)/2

  3. n/2

  4. data inadequate

  5. n/3

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Whole numbers start from 0; hence n whole numbers means n-1 natural numbers. Sum first n-1 natural numbers is {(n-1)(n-1+1)}/2 ; Average is ((n-1)*n)/(2*n) , Average is (n-1)/2.

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