Question

What is the average of the first 10 natural numbers?

• A. 5
• B. 5.5
• C. 6
• D. 4.5

Hint:

Average of consecutive integers is (first + last)/2.

Answer 1

The Correct Option is B

For consecutive numbers the average is the mean of the first and last: $\dfrac{1 + 10}{2} = \dfrac{11}{2} = 5.5$.