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:
402, 1256, 22
Verification:
(402 + 1256 + 22) / 3 = 1680 / 3 ≈ 560
This solution is correct!
Solution 4:
369, 135, 1176
Verification:
(369 + 135 + 1176) / 3 = 1680 / 3 ≈ 560
This solution is correct!
Solution 5:
50, 1123, 507
Verification:
(50 + 1123 + 507) / 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.