Question: If the average of 10 numbers is 20, what is the sum of those numbers?
Options:
180
200
220
240
Correct Answer: 200
Solution:
Sum = Average × Number of items = 20 × 10 = 200.
If the average of 10 numbers is 20, what is the sum of those numbers?
Practice Questions
Q1
If the average of 10 numbers is 20, what is the sum of those numbers?
180
200
220
240
Questions & Step-by-Step Solutions
If the average of 10 numbers is 20, what is the sum of those numbers?
Step 1: Understand that the average of a set of numbers is calculated by dividing the sum of those numbers by the total number of items.
Step 2: In this case, we know the average is 20 and there are 10 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 = 20 × 10.
Step 5: Calculate the result: 20 × 10 = 200.
Step 6: Therefore, the sum of the 10 numbers is 200.
Average and Sum Relationship – Understanding that the average of a set of numbers can be used to calculate the total sum by multiplying the average by the number of items.
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