If the average of 8 numbers is 45, what is the average of the first 4 numbers if
Practice Questions
Q1
If the average of 8 numbers is 45, what is the average of the first 4 numbers if their sum is 180?
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Questions & Step-by-Step Solutions
If the average of 8 numbers is 45, what is the average of the first 4 numbers if their sum is 180?
Step 1: Understand that the average of a set of numbers is found by dividing the sum of those numbers by the count of the numbers.
Step 2: We know the sum of the first 4 numbers is 180.
Step 3: To find the average of these 4 numbers, we divide the sum (180) by the count of numbers (4).
Step 4: Calculate 180 divided by 4, which equals 45.
Step 5: Therefore, the average of the first 4 numbers is 45.
Average Calculation – Understanding how to calculate the average by dividing the sum of a set of numbers by the count of those numbers.
Sum and Average Relationship – Recognizing the relationship between the sum of numbers and their average, especially in the context of subsets of a larger set.
