What is the Average of Odd Numbers between 200 and 800?

The below workout with step by step calculation shows how to find what is the average of odd numbers between 200 and 800 manually.
step 1 Address the formula and input values.
Formula: Average = Total Sum of Numbers / Total Count of Numbers
Input values:
The odd numbers between 200 and 800 are
201, 203, 205, 207, . . . . , 795, 797, 799
Total Count of Numbers = 300

step 2 Find the sum of odd numbers between 200 and 800.
sum = 201 + 203 + 205 + . . . . + 797 + 799
= 150000

step 3 Divide the sum by 300
Average = 150000/300
= 500

500 is an average of odd numbers between 200 and 800.

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