What three numbers have an average of 402?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 402. This means if we add these three numbers together and divide by 3, we should get 402.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 402 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 402 * 3 = x + y + z
- So, the sum of our three numbers should be: 1206
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 1206.
Solution 1:
402, 402, 402
Verification:
(402 + 402 + 402) / 3 = 1206 / 3 ≈ 402
This solution is correct!
Solution 2:
402, 402, 402
Verification:
(402 + 402 + 402) / 3 = 1206 / 3 ≈ 402
This solution is correct!
Solution 3:
174, 369, 663
Verification:
(174 + 369 + 663) / 3 = 1206 / 3 ≈ 402
This solution is correct!
Solution 4:
315, 169, 722
Verification:
(315 + 169 + 722) / 3 = 1206 / 3 ≈ 402
This solution is correct!
Solution 5:
584, 491, 131
Verification:
(584 + 491 + 131) / 3 = 1206 / 3 ≈ 402
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 1206 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.