Average of First 40 Natural Number is ;

Answer: (3) 20.5
Explanation:-
Sum of natural number is = n(n + 1)/2
where, n = number of natural numbers
Sum of 40 natural number = 40(40 + 1)/2
= 40 x 41/2
= 820
The average of 40 natural numbers = 820/40
= 20.5

Hence, the average of 40 natural numbers is 20.5