Answer: 5/6
Step-by-step explanation: Its very simple. All you have to do is list it out. If he gets 5 laps in 6 min, prematurely, you could assume that the laps and the minutes are linear. Then, if he runs 5 in 6min, you could divide both sides by 6, thus causing the answer of 5/6 laps in 1 min.
