What three numbers have an average of 581?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 581. This means if we add these three numbers together and divide by 3, we should get 581.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 581 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 581 * 3 = x + y + z
- So, the sum of our three numbers should be: 1743
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1743.
Solution 1:
581, 581, 581
Verification:
(581 + 581 + 581) / 3 = 1743 / 3 ≈ 581
This solution is correct!
Solution 2:
581, 581, 581
Verification:
(581 + 581 + 581) / 3 = 1743 / 3 ≈ 581
This solution is correct!
Solution 3:
743, 245, 755
Verification:
(743 + 245 + 755) / 3 = 1743 / 3 ≈ 581
This solution is correct!
Solution 4:
1087, 218, 438
Verification:
(1087 + 218 + 438) / 3 = 1743 / 3 ≈ 581
This solution is correct!
Solution 5:
496, 906, 341
Verification:
(496 + 906 + 341) / 3 = 1743 / 3 ≈ 581
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 1743 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.