An athlete takes 10 seconds to run 100m. What is his avg. speed in miles per hour?
Pick
A) 22.37 B) 26.66 C) 24.35 D) 36.0 E) 42.44

Rationale: his average speed is 10 m / s . which is 36 km / hr . but 36 km = 22.37 miles . the average speed of the athlete is 22.37 mph answer : a
Answer: A