What three numbers have an average of 724?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 724. This means if we add these three numbers together and divide by 3, we should get 724.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 724 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 724 * 3 = x + y + z
- So, the sum of our three numbers should be: 2172
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2172.
Solution 1:
724, 724, 724
Verification:
(724 + 724 + 724) / 3 = 2172 / 3 ≈ 724
This solution is correct!
Solution 2:
724, 724, 724
Verification:
(724 + 724 + 724) / 3 = 2172 / 3 ≈ 724
This solution is correct!
Solution 3:
1848, 110, 214
Verification:
(1848 + 110 + 214) / 3 = 2172 / 3 ≈ 724
This solution is correct!
Solution 4:
18, 312, 1842
Verification:
(18 + 312 + 1842) / 3 = 2172 / 3 ≈ 724
This solution is correct!
Solution 5:
1839, 101, 232
Verification:
(1839 + 101 + 232) / 3 = 2172 / 3 ≈ 724
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 2172 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.