What three numbers have an average of 557?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 557. This means if we add these three numbers together and divide by 3, we should get 557.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 557 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 557 * 3 = x + y + z
- So, the sum of our three numbers should be: 1671
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1671.
Solution 1:
557, 557, 557
Verification:
(557 + 557 + 557) / 3 = 1671 / 3 ≈ 557
This solution is correct!
Solution 2:
557, 557, 557
Verification:
(557 + 557 + 557) / 3 = 1671 / 3 ≈ 557
This solution is correct!
Solution 3:
1166, 325, 180
Verification:
(1166 + 325 + 180) / 3 = 1671 / 3 ≈ 557
This solution is correct!
Solution 4:
1233, 413, 25
Verification:
(1233 + 413 + 25) / 3 = 1671 / 3 ≈ 557
This solution is correct!
Solution 5:
1219, 35, 417
Verification:
(1219 + 35 + 417) / 3 = 1671 / 3 ≈ 557
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 1671 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.