Two cars, A and B, set off from cities A and B, which are 360 kilometers apart, at the same time and drive towards each other. It is known that it takes 6 hours for car A to travel from city A to city B, and it takes 12 hours for car B to travel from city B to city A. How many hours did you meet after departure?
甲乙两车分别从相距360千米的A、B两城同时出发，相向而行，已知甲车从A城到B城需6小时，乙车从B城到A城需12小时，两车出发后多少小时相遇？
<gadget id="calculator">360 / 6</gadget>
<output>60</output>

<gadget id="calculator">360 / 12</gadget>
<output>30</output>

<gadget id="calculator">60 + 30</gadget>
<output>90</output>

<gadget id="calculator">360 / 90</gadget>
<output>4</output>

<result>4</result>