What three numbers have an average of 270?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 270. This means if we add these three numbers together and divide by 3, we should get 270.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 270 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 270 * 3 = x + y + z
- So, the sum of our three numbers should be: 810
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 810.
Solution 1:
270, 270, 270
Verification:
(270 + 270 + 270) / 3 = 810 / 3 ≈ 270
This solution is correct!
Solution 2:
270, 270, 270
Verification:
(270 + 270 + 270) / 3 = 810 / 3 ≈ 270
This solution is correct!
Solution 3:
109, 163, 538
Verification:
(109 + 163 + 538) / 3 = 810 / 3 ≈ 270
This solution is correct!
Solution 4:
458, 40, 312
Verification:
(458 + 40 + 312) / 3 = 810 / 3 ≈ 270
This solution is correct!
Solution 5:
755, 47, 8
Verification:
(755 + 47 + 8) / 3 = 810 / 3 ≈ 270
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 810 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.