What is the Average of Even Numbers between 300 and 400?

The below workout with step by step calculation shows how to find what is the average of even numbers between 300 and 400 manually.
step 1 Address the formula and input values.
Formula: Average = Total Sum of Numbers / Total Count of Numbers
Input values:
The even numbers between 300 and 400 are
300, 301, 302, 303, . . . . , 398, 399, 400
Total Count of Numbers = 101

step 2 Find the sum of even numbers between 300 and 400.
sum = 300 + 301 + 302 + . . . . + 399 + 400
= 35350

step 3 Divide the sum by 101
Average = 35350/101
= 350

350 is an average of even numbers between 300 and 400.

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