Mingming and Liangliang are running on a circular track. They run from the same place in opposite directions at the same time. After 40 seconds, they meet. The track is 360 meters long. Mingming runs 5 meters per second. How much does Liangliang run per second? rice?
明明和亮亮在环形跑道上跑步，两人同时从同一地点向相反的方向跑去，经过40秒两人相遇，这条跑道长360米，明明每秒跑5米，亮亮每秒跑多少米？
<gadget id="calculator">360 / 40</gadget>
<output>9</output>

<gadget id="calculator">9 - 5</gadget>
<output>4</output>

<result>4</result>