Sports: Reaction time measures how quickly a runner reacts to the starter pistol. In the 100 m dash at the 2004 Olympic Games, Lauryn Williams had a reaction time of 0.214 second. Her total race time, including reaction time, was 11.03 seconds. How long did it take her to run the actual distance?
Solution:
It is given that
Reaction time Lauryn Williams had = 0.214 second
Total race time including reaction time = 11.03 seconds
So the time taken by her to run the actual distance = 11.03 - 0.214 = 10.816 seconds
Therefore, the time taken by her is 10.816 seconds.
✦ Try This: Sports: Reaction time measures how quickly a runner reacts to the starter pistol. In the 100 m dash at the 2004 Olympic Games, George had a reaction time of 0.315 second. His total race time, including reaction time, was 12.15 seconds. How long did it take him to run the actual distance?
It is given that
Reaction time George had = 0.315 second
Total race time including reaction time = 12.15 seconds
So the time taken by him to run the actual distance = 11.03 - 0.214 = 11.835 seconds
Therefore, the time taken by him is 11.835 seconds.
☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 2
NCERT Exemplar Class 7 Maths Chapter 2 Exercise Problem 116
Sports: Reaction time measures how quickly a runner reacts to the starter pistol. In the 100 m dash at the 2004 Olympic Games, Lauryn Williams had a reaction time of 0.214 second. Her total race time, including reaction time, was 11.03 seconds. How long did it take her to run the actual distance?
Summary:
Sports: Reaction time measures how quickly a runner reacts to the starter pistol. In the 100 m dash at the 2004 Olympic Games, Lauryn Williams had a reaction time of 0.214 second. Her total race time, including reaction time, was 11.03 seconds. She took 10.815 seconds to run the actual distance
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