What three numbers have an average of 415?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 415. This means if we add these three numbers together and divide by 3, we should get 415.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 415 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 415 * 3 = x + y + z
- So, the sum of our three numbers should be: 1245
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1245.
Solution 1:
415, 415, 415
Verification:
(415 + 415 + 415) / 3 = 1245 / 3 ≈ 415
This solution is correct!
Solution 2:
415, 415, 415
Verification:
(415 + 415 + 415) / 3 = 1245 / 3 ≈ 415
This solution is correct!
Solution 3:
723, 453, 69
Verification:
(723 + 453 + 69) / 3 = 1245 / 3 ≈ 415
This solution is correct!
Solution 4:
933, 176, 136
Verification:
(933 + 176 + 136) / 3 = 1245 / 3 ≈ 415
This solution is correct!
Solution 5:
240, 235, 770
Verification:
(240 + 235 + 770) / 3 = 1245 / 3 ≈ 415
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 1245 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.