The distance between A and B is 480 kilometers. A car travels 180 kilometers from A to B in 3 hours. At this speed, how many hours will it take to reach B?
甲地到乙地相距480千米，一辆汽车从甲地到乙地，3小时行了180千米，按照这样的速度，还要几小时能到达乙地？
<gadget id="calculator">480 - 180</gadget>
<output>300</output>

<gadget id="calculator">180 / 3</gadget>
<output>60</output>

<gadget id="calculator">300 / 60</gadget>
<output>5</output>

<result>5</result>