6 people are walking on a circular road, starting from the same point in the same direction, and their respective speeds remain constant. After 30 minutes; 6 people are evenly distributed on the circular route and the fastest person has not caught up with the slowest person. How many minutes passed when the fastest person walked one more lap than the slowest person.
6人在一环形路上散步，从同一点沿同一方向出发，各自速度保持不变．经过30分钟后；6人均匀分布在环形路线上且速度最快的人未追上速度最慢的人．当速度最快的人比速度最慢的多走一圈时，又过了多少分钟．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">6 / (1/6)</gadget>
<output>36</output>

<gadget id="calculator">36 - 30</gadget>
<output>6</output>

<result>6</result>