An athlete takes 10 seconds to run 100m. What is his avg. speed in miles per hour? Choose the correct choice.
A) 22.37
B) 26.66
C) 24.35
D) 36.0
E) 42.44
His average speed is 10m/s. which is 36 km/hr.   But 36km=22.37 miles. The average speed of the athlete is 22.37mph   22.37nswer: 22.37
<result>A</result>
An athlete takes 10 seconds to run 100m. What is his avg. speed in miles per hour?