Question

A runner moves at an average speed of 3.0 m/s and covers 9.5 km. In seconds, how long does the run take?

28.5 s
29.0 s
3.16 s
3200 s

Answer 1

3200 s is the right answer

Answer 2

3200 seconds

Step-by-step explanation:

If he ran at 3 m/s for 28.5 seconds, he would have run 85.5 meters

29 seconds would be 87 meters run not 9.5 km