Question

For any three consecutive integers, show that the average of the smallest and largest integers is the middle integer

Answer 1

x=first integer
x+1=next consecutive integer
x+2= third consecutive integer.
Add them up and divide by 3
You should get x+1 which is the middle integer

Answer 2

Let the 3 consecutive integer be: N-1, N and N+1

The average of the smallest and the largest integer is: ( N -1 + N + 1 ) / 2
= 2N/2 = N which is the middle integer.

Answer 3

Got it thank you!