What is the average of the 1st 20 even numbers?

Let's assume that we are talking about natural numbers. Then, we are required to calculate the value of S = (2 + 4 + 6 + …. + 40) = 2 (1 + 2 + 3 + …. + 20) = 2 x (Sum of 1st 20 natural numbers). read more

even numbers. 21 is an average of first 20 even numbers mentioned in the below table, by substituting the total sum and count of numbers in the formula. The corresponding formulas, chart, examples & workout may help students, teachers or professionals to learn, teach or practice the average of first n natural numbers calculation. read more