Hello,

The first 20 even numbers are:
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40.

The average of the first 20 even numbers is = 420/20 = 21.

Hope it helps !

Hello hello ,

I hope you are doing well. As per your mentioned query, the average of first twenty even numbers is 11 . You just have to add all the numbers then divide that sum by the 20 as 20 is the number of numbers of set.

Then , you will get an average.

I hope this will be helpful for you !!