What three numbers have an average of 491?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 491. This means if we add these three numbers together and divide by 3, we should get 491.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 491 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 491 * 3 = x + y + z
- So, the sum of our three numbers should be: 1473
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1473.
Solution 1:
491, 491, 491
Verification:
(491 + 491 + 491) / 3 = 1473 / 3 ≈ 491
This solution is correct!
Solution 2:
491, 491, 491
Verification:
(491 + 491 + 491) / 3 = 1473 / 3 ≈ 491
This solution is correct!
Solution 3:
423, 611, 439
Verification:
(423 + 611 + 439) / 3 = 1473 / 3 ≈ 491
This solution is correct!
Solution 4:
1385, 76, 12
Verification:
(1385 + 76 + 12) / 3 = 1473 / 3 ≈ 491
This solution is correct!
Solution 5:
770, 564, 139
Verification:
(770 + 564 + 139) / 3 = 1473 / 3 ≈ 491
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 1473 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.