Question

A student runs 100 meters in 11 seconds. What is the speed of the student?

speed = distance over time; 1 mile = 1609 meters

9.1 miles per hour
16 miles per hour
20.3 miles per hour
24 miles per hour

Answer 1

100m= 0.621371 miles

11 seconds = 0.0030556 hours

 s=d/t

0.0621371miles/0.0030556hours = 20.3355miles/hours

round off to 20.3 miles per hour