What three numbers have an average of 245?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 245. This means if we add these three numbers together and divide by 3, we should get 245.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 245 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 245 * 3 = x + y + z
- So, the sum of our three numbers should be: 735
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 735.
Solution 1:
245, 245, 245
Verification:
(245 + 245 + 245) / 3 = 735 / 3 ≈ 245
This solution is correct!
Solution 2:
245, 245, 245
Verification:
(245 + 245 + 245) / 3 = 735 / 3 ≈ 245
This solution is correct!
Solution 3:
514, 9, 212
Verification:
(514 + 9 + 212) / 3 = 735 / 3 ≈ 245
This solution is correct!
Solution 4:
282, 427, 26
Verification:
(282 + 427 + 26) / 3 = 735 / 3 ≈ 245
This solution is correct!
Solution 5:
425, 211, 99
Verification:
(425 + 211 + 99) / 3 = 735 / 3 ≈ 245
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 735 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.