The below workout with step by step calculation shows how to find what is the average of numbers from 51 to 100 manually.
step 1 Address the formula and input values.
Formula: Average = Total Sum of Numbers / Total Count of Numbers
Input values:
The numbers from 51 to 100 are
51, 52, 53, 54, . . . . , 98, 99, 100
Total Count of Numbers = 50
step 2 Find the sum of numbers from 51 to 100.
sum = 51 + 52 + 53 + . . . . + 99 + 100
= 3775
step 3 Divide the sum by 50
Average = 3775/50
= 75.5
75.5 is an average of numbers from 51 to 100.