A can run a race in 80 seconds and B can run it in 100 seconds. What is the perc

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Question: A can run a race in 80 seconds and B can run it in 100 seconds. What is the percentage difference in their times?

Options:

Correct Answer: 20%

Solution:

Percentage difference = ((100 - 80) / 100) * 100 = 20%.

A can run a race in 80 seconds and B can run it in 100 seconds. What is the percentage difference in their times?

A can run a race in 80 seconds and B can run it in 100 seconds. What is the percentage difference in their times?

Step 1: Identify the time taken by A, which is 80 seconds.
Step 2: Identify the time taken by B, which is 100 seconds.
Step 3: Calculate the difference in their times by subtracting A's time from B's time: 100 - 80 = 20 seconds.
Step 4: To find the percentage difference, divide the difference (20 seconds) by B's time (100 seconds): 20 / 100.
Step 5: Multiply the result from Step 4 by 100 to convert it to a percentage: (20 / 100) * 100 = 20%.
Step 6: The percentage difference in their times is 20%.

Percentage Difference – The percentage difference is calculated by taking the absolute difference between two values, dividing by the average of those values, and then multiplying by 100.