What three numbers have an average of 412?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 412. This means if we add these three numbers together and divide by 3, we should get 412.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 412 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 412 * 3 = x + y + z
- So, the sum of our three numbers should be: 1236
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1236.
Solution 1:
412, 412, 412
Verification:
(412 + 412 + 412) / 3 = 1236 / 3 ≈ 412
This solution is correct!
Solution 2:
412, 412, 412
Verification:
(412 + 412 + 412) / 3 = 1236 / 3 ≈ 412
This solution is correct!
Solution 3:
308, 378, 550
Verification:
(308 + 378 + 550) / 3 = 1236 / 3 ≈ 412
This solution is correct!
Solution 4:
1231, 1, 4
Verification:
(1231 + 1 + 4) / 3 = 1236 / 3 ≈ 412
This solution is correct!
Solution 5:
1121, 38, 77
Verification:
(1121 + 38 + 77) / 3 = 1236 / 3 ≈ 412
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 1236 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.