What three numbers have an average of 693?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 693. This means if we add these three numbers together and divide by 3, we should get 693.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 693 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 693 * 3 = x + y + z
- So, the sum of our three numbers should be: 2079
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2079.
Solution 1:
693, 693, 693
Verification:
(693 + 693 + 693) / 3 = 2079 / 3 ≈ 693
This solution is correct!
Solution 2:
693, 693, 693
Verification:
(693 + 693 + 693) / 3 = 2079 / 3 ≈ 693
This solution is correct!
Solution 3:
1720, 235, 124
Verification:
(1720 + 235 + 124) / 3 = 2079 / 3 ≈ 693
This solution is correct!
Solution 4:
1555, 273, 251
Verification:
(1555 + 273 + 251) / 3 = 2079 / 3 ≈ 693
This solution is correct!
Solution 5:
211, 17, 1851
Verification:
(211 + 17 + 1851) / 3 = 2079 / 3 ≈ 693
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 2079 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.