The passenger ship and the freighter depart from the two ports of A and B at the same time respectively. After several hours, the two ships meet, and after the meeting, the cargo ship arrives at Port A for another 6 hours. 20% of the distance from the port, how many hours did it take for the passenger ship and the cargo ship to meet from departure to meeting?
客轮和货轮分别从甲、乙两港同时相向开出，经过若干小时两船相遇，遇后又行了6小时货船到达甲港，这时客船已过乙港又向前行了甲、乙两港距离的20%，客船和货船从出发到相遇用了多少小时？
<result>5</result>