Question: The average of five numbers is 50. If one number is increased by 10, what will be the new average?
Options:
52
50
51
53
Correct Answer: 51
Solution:
Total sum = 5 * 50 = 250. New total = 250 + 10 = 260. New average = 260 / 5 = 52.
The average of five numbers is 50. If one number is increased by 10, what will b
Practice Questions
Q1
The average of five numbers is 50. If one number is increased by 10, what will be the new average?
52
50
51
53
Questions & Step-by-Step Solutions
The average of five numbers is 50. If one number is increased by 10, what will be the new average?
Step 1: Find the total sum of the five numbers. Since the average is 50, multiply 50 by 5. This gives you 250.
Step 2: Increase one of the numbers by 10. So, add 10 to the total sum. Now the new total sum is 250 + 10, which equals 260.
Step 3: Calculate the new average. To find the new average, divide the new total sum (260) by the number of numbers (5). So, 260 divided by 5 equals 52.
Average Calculation – Understanding how to calculate the average of a set of numbers and how changes to individual numbers affect the overall average.
Impact of Changes on Averages – Recognizing that increasing one number in a set will increase the average proportionally based on the number of elements.
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