What is the Average of Even Numbers between 101 and 500?

The below workout with step by step calculation shows how to find what is the average of even numbers between 101 and 500 manually.
step 1 Address the formula, input parameters & values.
Formula: Average = Total Sum of Numbers / Total Count of Numbers
Input parameters & values:
The even numbers between 101 and 500 are
101, 102, 103, 104, . . . . , 498, 499, 500
Total Count of Numbers = 400

step 2 Find the sum of even numbers between 101 and 500.
sum = 101 + 102 + 103 + . . . . + 499 + 500
= 120200

step 3 Divide the sum by 400
Average = 120200/400
= 300.5

Thus, 300.5 is an average of even numbers between 101 and 500.

The below are the other calculators to find the average of odd, even, composite & prime numbers.