Car A travels 35 kilometers per hour, and car B travels 45 kilometers per hour. The two cars drive from two places 360 kilometers apart at the same time, and meet each other in how many hours.
甲车每小时行35千米，乙车每小时行45千米，两车同时从相距360千米的两地相对开出，多少几小时相遇．
<gadget id="calculator">35 + 45</gadget>
<output>80</output>

<gadget id="calculator">360 / 80</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>