What three numbers have an average of 249?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 249. This means if we add these three numbers together and divide by 3, we should get 249.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 249 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 249 * 3 = x + y + z
- So, the sum of our three numbers should be: 747
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 747.
Solution 1:
249, 249, 249
Verification:
(249 + 249 + 249) / 3 = 747 / 3 ≈ 249
This solution is correct!
Solution 2:
249, 249, 249
Verification:
(249 + 249 + 249) / 3 = 747 / 3 ≈ 249
This solution is correct!
Solution 3:
163, 155, 429
Verification:
(163 + 155 + 429) / 3 = 747 / 3 ≈ 249
This solution is correct!
Solution 4:
354, 93, 300
Verification:
(354 + 93 + 300) / 3 = 747 / 3 ≈ 249
This solution is correct!
Solution 5:
611, 34, 102
Verification:
(611 + 34 + 102) / 3 = 747 / 3 ≈ 249
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 747 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.