Answer:
Step-by-step explanation:
per lap? If it is not per lap, you are going to have to edit the question.
5 laps = 15 minutes
1 lat = x Cross multiply this is a proportion
5x = 15 minutes Divide by 5
5x/5 = 15/5
x = 3 minutes.
It takes him 3 minutes to do one lap.
