What three numbers have an average of 771?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 771. This means if we add these three numbers together and divide by 3, we should get 771.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 771 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 771 * 3 = x + y + z
- So, the sum of our three numbers should be: 2313
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2313.
Solution 1:
771, 771, 771
Verification:
(771 + 771 + 771) / 3 = 2313 / 3 ≈ 771
This solution is correct!
Solution 2:
771, 771, 771
Verification:
(771 + 771 + 771) / 3 = 2313 / 3 ≈ 771
This solution is correct!
Solution 3:
1080, 265, 968
Verification:
(1080 + 265 + 968) / 3 = 2313 / 3 ≈ 771
This solution is correct!
Solution 4:
2187, 14, 112
Verification:
(2187 + 14 + 112) / 3 = 2313 / 3 ≈ 771
This solution is correct!
Solution 5:
2128, 110, 75
Verification:
(2128 + 110 + 75) / 3 = 2313 / 3 ≈ 771
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 2313 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.