What three numbers have an average of 997?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 997. This means if we add these three numbers together and divide by 3, we should get 997.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 997 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 997 * 3 = x + y + z
- So, the sum of our three numbers should be: 2991
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2991.
Solution 1:
997, 997, 997
Verification:
(997 + 997 + 997) / 3 = 2991 / 3 ≈ 997
This solution is correct!
Solution 2:
997, 997, 997
Verification:
(997 + 997 + 997) / 3 = 2991 / 3 ≈ 997
This solution is correct!
Solution 3:
1724, 237, 1030
Verification:
(1724 + 237 + 1030) / 3 = 2991 / 3 ≈ 997
This solution is correct!
Solution 4:
1399, 198, 1394
Verification:
(1399 + 198 + 1394) / 3 = 2991 / 3 ≈ 997
This solution is correct!
Solution 5:
695, 1530, 766
Verification:
(695 + 1530 + 766) / 3 = 2991 / 3 ≈ 997
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 2991 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.