What three numbers have an average of 163?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 163. This means if we add these three numbers together and divide by 3, we should get 163.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 163 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 163 * 3 = x + y + z
- So, the sum of our three numbers should be: 489
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 489.
Solution 1:
163, 163, 163
Verification:
(163 + 163 + 163) / 3 = 489 / 3 ≈ 163
This solution is correct!
Solution 2:
163, 163, 163
Verification:
(163 + 163 + 163) / 3 = 489 / 3 ≈ 163
This solution is correct!
Solution 3:
406, 9, 74
Verification:
(406 + 9 + 74) / 3 = 489 / 3 ≈ 163
This solution is correct!
Solution 4:
8, 9, 472
Verification:
(8 + 9 + 472) / 3 = 489 / 3 ≈ 163
This solution is correct!
Solution 5:
260, 40, 189
Verification:
(260 + 40 + 189) / 3 = 489 / 3 ≈ 163
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 489 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.