What three numbers have an average of 993?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 993. This means if we add these three numbers together and divide by 3, we should get 993.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 993 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 993 * 3 = x + y + z
- So, the sum of our three numbers should be: 2979
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2979.
Solution 1:
993, 993, 993
Verification:
(993 + 993 + 993) / 3 = 2979 / 3 ≈ 993
This solution is correct!
Solution 2:
993, 993, 993
Verification:
(993 + 993 + 993) / 3 = 2979 / 3 ≈ 993
This solution is correct!
Solution 3:
2963, 14, 2
Verification:
(2963 + 14 + 2) / 3 = 2979 / 3 ≈ 993
This solution is correct!
Solution 4:
1514, 87, 1378
Verification:
(1514 + 87 + 1378) / 3 = 2979 / 3 ≈ 993
This solution is correct!
Solution 5:
803, 303, 1873
Verification:
(803 + 303 + 1873) / 3 = 2979 / 3 ≈ 993
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 2979 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.