Average Of 21 And 78

What is the average of 2 numbers : 21 And 78

How to do ?

Let's add these 2 numbers :

21 + 78 = 99

And then to find average, we have to find center point of the summation of these 2 numbers : 99, so let's divide 99 to 2 .

99 / 2 = 49.5

Answer = 49.5

Average of 21 and 78 is 49.5