Find the average of first 40 natural numbers? Options: A . &nbsp21.5 B . &nbsp22.6 C . &nbsp19.4 D . &nbsp20.5

Find the average of fi

Question

Find the average of first 40 natural numbers?

Options:

A . 21.5

B . 22.6

C . 19.4

D . 20.5

Answer: Option D

sumof first n natural numbers=n(n+1)/2;
So,sum of 40 natural numbers=(40*41)/2â†”820.
Therefore the required average=(820/40)â†”20.5.

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