What three numbers have an average of 769?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 769. This means if we add these three numbers together and divide by 3, we should get 769.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 769 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 769 * 3 = x + y + z
- So, the sum of our three numbers should be: 2307
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2307.
Solution 1:
769, 769, 769
Verification:
(769 + 769 + 769) / 3 = 2307 / 3 ≈ 769
This solution is correct!
Solution 2:
769, 769, 769
Verification:
(769 + 769 + 769) / 3 = 2307 / 3 ≈ 769
This solution is correct!
Solution 3:
1287, 237, 783
Verification:
(1287 + 237 + 783) / 3 = 2307 / 3 ≈ 769
This solution is correct!
Solution 4:
1677, 318, 312
Verification:
(1677 + 318 + 312) / 3 = 2307 / 3 ≈ 769
This solution is correct!
Solution 5:
1379, 79, 849
Verification:
(1379 + 79 + 849) / 3 = 2307 / 3 ≈ 769
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 2307 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.