A circular runway has a diameter of 200 meters. A and B start from one point at the same time, walk towards each other, and meet each other in 4 minutes. How many meters do they run in total per minute?
某圆形跑道的直径为200米．甲、乙两人同时从一点出发，相背而行，4分钟相遇，他们每分钟共跑多少米？
<gadget id="calculator">618 / 4</gadget>
<output>309/2 = around 154.5</output>

<result>309/2 = around 154.5</result>