The average of 11 consecutive natural numbers is A. What is the sum of the largest and the smallest numbers?
Show answer & explanation
Correct answer: C
Explanation
Given:
Average of 11 consecutive natural numbers = A
According to the formula:
Average of consecutive numbers = Middle number
Middle (6th) number = A
Smallest number = A − 5
Largest number = A + 5
Sum = (A − 5) + (A + 5) = 2A