What three numbers have an average of 560?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 560. This means if we add these three numbers together and divide by 3, we should get 560.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 560 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 560 * 3 = x + y + z
- So, the sum of our three numbers should be: 1680
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1680.
Solution 1:
560, 560, 560
Verification:
(560 + 560 + 560) / 3 = 1680 / 3 ≈ 560
This solution is correct!
Solution 2:
560, 560, 560
Verification:
(560 + 560 + 560) / 3 = 1680 / 3 ≈ 560
This solution is correct!
Solution 3:
81, 1432, 167
Verification:
(81 + 1432 + 167) / 3 = 1680 / 3 ≈ 560
This solution is correct!
Solution 4:
772, 287, 621
Verification:
(772 + 287 + 621) / 3 = 1680 / 3 ≈ 560
This solution is correct!
Solution 5:
1181, 57, 442
Verification:
(1181 + 57 + 442) / 3 = 1680 / 3 ≈ 560
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 1680 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.