A ship sails from Port A to Port B. It plans to travel 24 kilometers per hour and arrive at Port B in 20 hours. In fact, it has traveled 150 kilometers in the first 5 hours. According to this calculation, how many hours will it take to reach Port B?
一艘轮船从甲港驶往乙港，计划每小时行24千米，20小时可以到达，实际前5小时已经行驶了150千米，照这样计算，到达乙港共需要多少小时？
<gadget id="calculator">24 * 20</gadget>
<output>480</output>

<gadget id="calculator">150 / 5</gadget>
<output>30</output>

<gadget id="calculator">480 / 30</gadget>
<output>16</output>

<result>16</result>