What three numbers have an average of 867?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 867. This means if we add these three numbers together and divide by 3, we should get 867.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 867 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 867 * 3 = x + y + z
- So, the sum of our three numbers should be: 2601
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2601.
Solution 1:
867, 867, 867
Verification:
(867 + 867 + 867) / 3 = 2601 / 3 ≈ 867
This solution is correct!
Solution 2:
867, 867, 867
Verification:
(867 + 867 + 867) / 3 = 2601 / 3 ≈ 867
This solution is correct!
Solution 3:
1112, 121, 1368
Verification:
(1112 + 121 + 1368) / 3 = 2601 / 3 ≈ 867
This solution is correct!
Solution 4:
15, 1935, 651
Verification:
(15 + 1935 + 651) / 3 = 2601 / 3 ≈ 867
This solution is correct!
Solution 5:
728, 615, 1258
Verification:
(728 + 615 + 1258) / 3 = 2601 / 3 ≈ 867
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 2601 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.