What three numbers have an average of 975?
Part 1: Understanding the Problem
We're looking for three numbers whose average is 975. This means if we add these three numbers together and divide by 3, we should get 975.
Step-by-step Solution:
- Recall the average formula: Average = (Sum of numbers) / (Count of numbers)
- In this case: 975 = (x + y + z) / 3
- To find the sum, multiply both sides by 3: 975 * 3 = x + y + z
- So, the sum of our three numbers should be: 2925
Part 2: Finding Solutions
Now, let's find multiple sets of three numbers that add up to 2925.
Solution 1:
975, 975, 975
Verification:
(975 + 975 + 975) / 3 = 2925 / 3 ≈ 975
This solution is correct!
Solution 2:
975, 975, 975
Verification:
(975 + 975 + 975) / 3 = 2925 / 3 ≈ 975
This solution is correct!
Solution 3:
284, 1202, 1439
Verification:
(284 + 1202 + 1439) / 3 = 2925 / 3 ≈ 975
This solution is correct!
Solution 4:
45, 2870, 10
Verification:
(45 + 2870 + 10) / 3 = 2925 / 3 ≈ 975
This solution is correct!
Solution 5:
1172, 586, 1167
Verification:
(1172 + 586 + 1167) / 3 = 2925 / 3 ≈ 975
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 2925 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.