Question: If the average of 8 numbers is 45, what is the sum of these numbers?
Options:
360
400
450
480
Correct Answer: 450
Solution:
Sum = Average * Number of items = 45 * 8 = 360.
If the average of 8 numbers is 45, what is the sum of these numbers?
Practice Questions
Q1
If the average of 8 numbers is 45, what is the sum of these numbers?
360
400
450
480
Questions & Step-by-Step Solutions
If the average of 8 numbers is 45, what is the sum of these numbers?
Step 1: Understand that the average of a set of numbers is found by dividing the sum of those numbers by the total number of items.
Step 2: In this case, we know the average is 45 and there are 8 numbers.
Step 3: To find the sum, we can use the formula: Sum = Average * Number of items.
Step 4: Substitute the values into the formula: Sum = 45 * 8.
Step 5: Calculate the multiplication: 45 * 8 = 360.
Step 6: Therefore, the sum of the 8 numbers is 360.
Average and Sum Relationship – The average of a set of numbers is calculated by dividing the sum of the numbers by the count of the numbers. To find the sum, multiply the average by the number of items.
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