What three numbers have an average of 127?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 127. This means if we add these three numbers together and divide by 3, we should get 127.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 127 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 127 * 3 = x + y + z
- So, the sum of our three numbers should be: 381
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 381.
Solution 1:
127, 127, 127
Verification:
(127 + 127 + 127) / 3 = 381 / 3 ≈ 127
This solution is correct!
Solution 2:
127, 127, 127
Verification:
(127 + 127 + 127) / 3 = 381 / 3 ≈ 127
This solution is correct!
Solution 3:
145, 215, 21
Verification:
(145 + 215 + 21) / 3 = 381 / 3 ≈ 127
This solution is correct!
Solution 4:
250, 106, 25
Verification:
(250 + 106 + 25) / 3 = 381 / 3 ≈ 127
This solution is correct!
Solution 5:
256, 8, 117
Verification:
(256 + 8 + 117) / 3 = 381 / 3 ≈ 127
This solution is correct!
Explanation:
As you can see, there are many possible solutions. We can find more by:
- Choosing any two numbers
- Subtracting their sum from 381 to get the third number
Remember:
- The numbers don't have to be whole numbers.
- They can even be negative (although that might not make sense in some real-world contexts).
- The order of the numbers doesn't matter for the average.