The distance between two stations A and B is 480 kilometers. The express train leaves from station A to station B at 5:00 am. The two trains meet at 11:00 am. After the express train arrives at station B at 3:00 pm, how many hours will the slow train continue to drive to reach station B?
甲乙两站相距480千米，快车上午5时从甲站开往乙站，两车在上午11时相遇，下午3时快车到达乙站后，慢车还要继续行驶多少小时才能到达乙站？
<gadget id="calculator">4 / 6</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">6 / (2/3)</gadget>
<output>9</output>

<result>9</result>