What three numbers have an average of 747?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 747. This means if we add these three numbers together and divide by 3, we should get 747.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 747 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 747 * 3 = x + y + z
- So, the sum of our three numbers should be: 2241
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2241.
Solution 1:
747, 747, 747
Verification:
(747 + 747 + 747) / 3 = 2241 / 3 ≈ 747
This solution is correct!
Solution 2:
747, 747, 747
Verification:
(747 + 747 + 747) / 3 = 2241 / 3 ≈ 747
This solution is correct!
Solution 3:
130, 1198, 913
Verification:
(130 + 1198 + 913) / 3 = 2241 / 3 ≈ 747
This solution is correct!
Solution 4:
1471, 172, 598
Verification:
(1471 + 172 + 598) / 3 = 2241 / 3 ≈ 747
This solution is correct!
Solution 5:
942, 582, 717
Verification:
(942 + 582 + 717) / 3 = 2241 / 3 ≈ 747
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 2241 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.