Average Of 17 And 21

What is the average of 2 numbers : 17 And 21

How to do ?

Let's add these 2 numbers :

17 + 21 = 38

And then to find average, we have to find center point of the summation of these 2 numbers : 38, so let's divide 38 to 2 .

38 / 2 = 19

Answer = 19

Average of 17 and 21 is 19