What three numbers have an average of 817?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 817. This means if we add these three numbers together and divide by 3, we should get 817.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 817 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 817 * 3 = x + y + z
- So, the sum of our three numbers should be: 2451
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2451.
Solution 1:
817, 817, 817
Verification:
(817 + 817 + 817) / 3 = 2451 / 3 ≈ 817
This solution is correct!
Solution 2:
817, 817, 817
Verification:
(817 + 817 + 817) / 3 = 2451 / 3 ≈ 817
This solution is correct!
Solution 3:
240, 1993, 218
Verification:
(240 + 1993 + 218) / 3 = 2451 / 3 ≈ 817
This solution is correct!
Solution 4:
115, 472, 1864
Verification:
(115 + 472 + 1864) / 3 = 2451 / 3 ≈ 817
This solution is correct!
Solution 5:
1225, 1149, 77
Verification:
(1225 + 1149 + 77) / 3 = 2451 / 3 ≈ 817
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 2451 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.