What three numbers have an average of 717?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 717. This means if we add these three numbers together and divide by 3, we should get 717.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 717 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 717 * 3 = x + y + z
- So, the sum of our three numbers should be: 2151
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2151.
Solution 1:
717, 717, 717
Verification:
(717 + 717 + 717) / 3 = 2151 / 3 ≈ 717
This solution is correct!
Solution 2:
717, 717, 717
Verification:
(717 + 717 + 717) / 3 = 2151 / 3 ≈ 717
This solution is correct!
Solution 3:
1834, 19, 298
Verification:
(1834 + 19 + 298) / 3 = 2151 / 3 ≈ 717
This solution is correct!
Solution 4:
422, 1209, 520
Verification:
(422 + 1209 + 520) / 3 = 2151 / 3 ≈ 717
This solution is correct!
Solution 5:
268, 1301, 582
Verification:
(268 + 1301 + 582) / 3 = 2151 / 3 ≈ 717
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 2151 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.