Average of even numbers from 1 to 79




What is the average of even numbers from 1 to 79? Here we will show you how to calculate the average of even numbers from 1 to 79.

To find the average of the even numbers from 1 to 79, we first calculate how many even numbers there are from 1 to 79. Then, we calculate the sum of even numbers from 1 to 79. And finally, we divide the sum by the number of even numbers to get the average.


The range is from 1 to 79, and the even numbers within that range are from 2 to 78. Therefore, the first even number in the sequence is 2, and the last even number in the sequence is 78.

Step 1) Calculate the total number of even numbers from 1 to 79
Here we calculate the total number of even numbers from 1 to 79 by entering the first and last even number in the sequence into our formula. Here is the formula and the math:

tot = (last - first + 2) ÷ 2
tot = (78 - 2 + 2) ÷ 2
tot = 78 ÷ 2
tot = 39
Total even numbers from 1 to 79 = 39

Step 2) Calculate the sum of even numbers from 1 to 79
To calculate the sum of even numbers from 1 to 79, you enter the total even numbers (tot) from Step 1 and the first even number in the sequence into our formula. Here is the formula and the math:

sum = (tot ÷ 2) × (2 × first + (2 × (tot - 1))
sum = (39 ÷ 2) × (2 × 2 + (2 × (39 - 1))
sum = 19.5 × (4 + 76)
sum = 19.5 × 80
sum = 1560
Sum of even numbers from 1 to 79 = 1560

Step 3) Calculate the average of even numbers from 1 to 79
Almost done! Now we can calculate the average of even numbers from 1 to 79 by dividing the sum of even numbers from Step 2 by the total even numbers from Step 1. Here is the formula, the math, and the answer:

Average = sum ÷ tot
Average = 1560 ÷ 39
Average = 40
Average of even numbers from 1 to 79 = 40


Average of Even Numbers Calculator
Here you can calculate the average of even numbers of a different sequence.

Average of Even Numbers

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