Question 1012068
The sum of numbers from 1 to n is n(n+1)/2.  The average is (n+1)/2
The 5 values have a sum of 271 with an average of 54.2
108.4=(n+1)
107.4=n
107 would be my best guess but 114 was picked.  Therefore, I would use 114 as my best guess.