What three numbers have an average of 623?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 623. This means if we add these three numbers together and divide by 3, we should get 623.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 623 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 623 * 3 = x + y + z
- So, the sum of our three numbers should be: 1869
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1869.
Solution 1:
623, 623, 623
Verification:
(623 + 623 + 623) / 3 = 1869 / 3 ≈ 623
This solution is correct!
Solution 2:
623, 623, 623
Verification:
(623 + 623 + 623) / 3 = 1869 / 3 ≈ 623
This solution is correct!
Solution 3:
1557, 145, 167
Verification:
(1557 + 145 + 167) / 3 = 1869 / 3 ≈ 623
This solution is correct!
Solution 4:
1415, 374, 80
Verification:
(1415 + 374 + 80) / 3 = 1869 / 3 ≈ 623
This solution is correct!
Solution 5:
28, 1291, 550
Verification:
(28 + 1291 + 550) / 3 = 1869 / 3 ≈ 623
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 1869 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.