What three numbers have an average of 486?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 486. This means if we add these three numbers together and divide by 3, we should get 486.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 486 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 486 * 3 = x + y + z
- So, the sum of our three numbers should be: 1458
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1458.
Solution 1:
486, 486, 486
Verification:
(486 + 486 + 486) / 3 = 1458 / 3 ≈ 486
This solution is correct!
Solution 2:
486, 486, 486
Verification:
(486 + 486 + 486) / 3 = 1458 / 3 ≈ 486
This solution is correct!
Solution 3:
1067, 77, 314
Verification:
(1067 + 77 + 314) / 3 = 1458 / 3 ≈ 486
This solution is correct!
Solution 4:
1378, 33, 47
Verification:
(1378 + 33 + 47) / 3 = 1458 / 3 ≈ 486
This solution is correct!
Solution 5:
1377, 40, 41
Verification:
(1377 + 40 + 41) / 3 = 1458 / 3 ≈ 486
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 1458 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.