Ask Question
18 March, 05:03

The timekeeper for a particular mile race uses a stopwatch to determine the finishing times of the racers. He then calculates that the mean time for the first three finishers was 5.75 minutes. After checking his stopwatch, he notices to his horror that the stopwatch begins timing at 45 seconds rather than at 0, resulting in scores each of which is 45 seconds too long. What is the correct mean time for the first three finishers?

+2
Answers (1)
  1. 18 March, 05:05
    0
    300 seconds = 5 minutes

    Step-by-step explanation:

    At first convert the time in minutes which is

    5.75 * 60 = 345 seconds

    No as the average is 345 seconds at starts from 45 so we subtract that time from 45 seconds

    345-45 = 300 seconds (Mean)

    So 300 seconds = 300/60 = 5 minutes

    So the Accurate mean is 5 minutes
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “The timekeeper for a particular mile race uses a stopwatch to determine the finishing times of the racers. He then calculates that the mean ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers