Two people, A and B, run towards each other from points A and B at the two ends of the diameter of the circular runway. It is known that A runs 250 meters per minute, and B runs 350 meters per minute. The place where A and B meet for the first time is the same as The distance between the second meeting place is 150 meters (the shortest distance on the circle), so how long is the circular runway in meters?
甲、乙两人分别从圆形跑道的直径两端A、B两点相向跑步，已知甲每分钟跑250米，乙每分钟跑350米，甲、乙两人第一次相遇的地点与第二次相遇的地点相距150米(圆上最近距离)，那么这个圆形跑道长多少米．
<gadget id="calculator">150 / 350</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">150 / 250</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/7) + (3/5)</gadget>
<output>36/35 = around 1.028571</output>

<gadget id="calculator">1 / 350</gadget>
<output>1/350 = around 0.002857</output>

<gadget id="calculator">(36/35) / (1/350)</gadget>
<output>360</output>

<result>360</result>