What three numbers have an average of 543?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 543. This means if we add these three numbers together and divide by 3, we should get 543.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 543 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 543 * 3 = x + y + z
- So, the sum of our three numbers should be: 1629
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1629.
Solution 1:
543, 543, 543
Verification:
(543 + 543 + 543) / 3 = 1629 / 3 ≈ 543
This solution is correct!
Solution 2:
543, 543, 543
Verification:
(543 + 543 + 543) / 3 = 1629 / 3 ≈ 543
This solution is correct!
Solution 3:
671, 641, 317
Verification:
(671 + 641 + 317) / 3 = 1629 / 3 ≈ 543
This solution is correct!
Solution 4:
77, 586, 966
Verification:
(77 + 586 + 966) / 3 = 1629 / 3 ≈ 543
This solution is correct!
Solution 5:
1602, 7, 20
Verification:
(1602 + 7 + 20) / 3 = 1629 / 3 ≈ 543
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 1629 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.