What three numbers have an average of 711?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 711. This means if we add these three numbers together and divide by 3, we should get 711.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 711 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 711 * 3 = x + y + z
- So, the sum of our three numbers should be: 2133
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2133.
Solution 1:
711, 711, 711
Verification:
(711 + 711 + 711) / 3 = 2133 / 3 ≈ 711
This solution is correct!
Solution 2:
711, 711, 711
Verification:
(711 + 711 + 711) / 3 = 2133 / 3 ≈ 711
This solution is correct!
Solution 3:
776, 693, 664
Verification:
(776 + 693 + 664) / 3 = 2133 / 3 ≈ 711
This solution is correct!
Solution 4:
148, 1455, 530
Verification:
(148 + 1455 + 530) / 3 = 2133 / 3 ≈ 711
This solution is correct!
Solution 5:
1074, 699, 360
Verification:
(1074 + 699 + 360) / 3 = 2133 / 3 ≈ 711
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 2133 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.