What three numbers have an average of 122?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 122. This means if we add these three numbers together and divide by 3, we should get 122.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 122 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 122 * 3 = x + y + z
- So, the sum of our three numbers should be: 366
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 366.
Solution 1:
122, 122, 122
Verification:
(122 + 122 + 122) / 3 = 366 / 3 ≈ 122
This solution is correct!
Solution 2:
122, 122, 122
Verification:
(122 + 122 + 122) / 3 = 366 / 3 ≈ 122
This solution is correct!
Solution 3:
78, 242, 46
Verification:
(78 + 242 + 46) / 3 = 366 / 3 ≈ 122
This solution is correct!
Solution 4:
174, 15, 177
Verification:
(174 + 15 + 177) / 3 = 366 / 3 ≈ 122
This solution is correct!
Solution 5:
271, 78, 17
Verification:
(271 + 78 + 17) / 3 = 366 / 3 ≈ 122
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 366 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.