What is the average of even numbers from 103 to 189? Here we will show you how to calculate the average of even numbers from 103 to 189.
To find the average of the even numbers from 103 to 189, we first calculate how many even numbers there are from 103 to 189. Then, we calculate the sum of even numbers from 103 to 189. And finally, we divide the sum by the number of even numbers to get the average.
The range is from 103 to 189, and the even numbers within that range are from 104 to 188. Therefore, the first even number in the sequence is 104, and the last even number in the sequence is 188.
Step 1) Calculate the total number of even numbers from 103 to 189
Here we calculate the total number of even numbers from 103 to 189 by entering the first and last even number in the sequence into our formula. Here is the formula and the math:
tot = (last - first + 2) ÷ 2
tot = (188 - 104 + 2) ÷ 2
tot = 86 ÷ 2
tot = 43
Total even numbers from 103 to 189 = 43
Step 2) Calculate the sum of even numbers from 103 to 189
To calculate the sum of even numbers from 103 to 189, you enter the total even numbers (tot) from Step 1 and the first even number in the sequence into our formula. Here is the formula and the math:
sum = (tot ÷ 2) × (2 × first + (2 × (tot - 1))
sum = (43 ÷ 2) × (2 × 104 + (2 × (43 - 1))
sum = 21.5 × (208 + 84)
sum = 21.5 × 292
sum = 6278
Sum of even numbers from 103 to 189 = 6278
Step 3) Calculate the average of even numbers from 103 to 189
Almost done! Now we can calculate the average of even numbers from 103 to 189 by dividing the sum of even numbers from Step 2 by the total even numbers from Step 1. Here is the formula, the math, and the answer:
Average = sum ÷ tot
Average = 6278 ÷ 43
Average = 146
Average of even numbers from 103 to 189 = 146
Average of Even Numbers Calculator
Here you can calculate the average of even numbers of a different sequence.