What is the average of odd numbers from 100 to 131? Here we will show you how to calculate the average of odd numbers from 100 to 131.
To find the average of the odd numbers from 100 to 131, we first calculate how many odd numbers there are from 100 to 131. Then, we calculate the sum of odd numbers from 100 to 131. And finally, we divide the sum by the number of odd numbers to get the average.
The range is from 100 to 131, and the odd numbers within that range are from 101 to 131. Therefore, the first odd number in the sequence is 101, and the last odd number in the sequence is 131.
Step 1) Calculate the total number of odd numbers from 100 to 131
Here we calculate the total number of odd numbers from 100 to 131 by entering the first and last odd number in the sequence into our formula. Here is the formula and the math:
tot = (last - first + 2) ÷ 2
tot = (131 - 101 + 2) ÷ 2
tot = 32 ÷ 2
tot = 16
Total odd numbers from 100 to 131 = 16
Step 2) Calculate the sum of odd numbers from 100 to 131
To calculate the sum of odd numbers from 100 to 131, you enter the total odd numbers (tot) from Step 1 and the first odd number in the sequence into our formula. Here is the formula and the math:
sum = (tot ÷ 2) × (2 × first + (2 × (tot - 1))
sum = (16 ÷ 2) × (2 × 101 + (2 × (16 - 1))
sum = 8 × (202 + 30)
sum = 8 × 232
sum = 1856
Sum of odd numbers from 100 to 131 = 1856
Step 3) Calculate the average of odd numbers from 100 to 131
Almost done! Now we can calculate the average of odd numbers from 100 to 131 by dividing the sum of odd numbers from Step 2 by the total odd numbers from Step 1. Here is the formula, the math, and the answer:
Average = sum ÷ tot
Average = 1856 ÷ 16
Average = 116
Average of odd numbers from 100 to 131 = 116
Average of Odd Numbers Calculator
Here you can calculate the average of odd numbers of a different sequence.