What three numbers have an average of 312?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 312. This means if we add these three numbers together and divide by 3, we should get 312.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 312 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 312 * 3 = x + y + z
- So, the sum of our three numbers should be: 936
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 936.
Solution 1:
312, 312, 312
Verification:
(312 + 312 + 312) / 3 = 936 / 3 ≈ 312
This solution is correct!
Solution 2:
312, 312, 312
Verification:
(312 + 312 + 312) / 3 = 936 / 3 ≈ 312
This solution is correct!
Solution 3:
305, 173, 458
Verification:
(305 + 173 + 458) / 3 = 936 / 3 ≈ 312
This solution is correct!
Solution 4:
820, 74, 42
Verification:
(820 + 74 + 42) / 3 = 936 / 3 ≈ 312
This solution is correct!
Solution 5:
260, 527, 149
Verification:
(260 + 527 + 149) / 3 = 936 / 3 ≈ 312
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 936 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.