What three numbers have an average of 260?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 260. This means if we add these three numbers together and divide by 3, we should get 260.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 260 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 260 * 3 = x + y + z
- So, the sum of our three numbers should be: 780
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 780.
Solution 1:
260, 260, 260
Verification:
(260 + 260 + 260) / 3 = 780 / 3 ≈ 260
This solution is correct!
Solution 2:
260, 260, 260
Verification:
(260 + 260 + 260) / 3 = 780 / 3 ≈ 260
This solution is correct!
Solution 3:
319, 126, 335
Verification:
(319 + 126 + 335) / 3 = 780 / 3 ≈ 260
This solution is correct!
Solution 4:
239, 328, 213
Verification:
(239 + 328 + 213) / 3 = 780 / 3 ≈ 260
This solution is correct!
Solution 5:
467, 203, 110
Verification:
(467 + 203 + 110) / 3 = 780 / 3 ≈ 260
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 780 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.