The distance between A and B is 378 kilometers, and a car travels 162 kilometers in 3 hours. At this speed, how many hours will it take to travel from A to B? (answer with ratio)
甲、乙两地相距378千米，一辆汽车3小时行驶了162千米，照这样的速度，从甲城到乙城要走多少小时？(用比例解答)
<gadget id="calculator">162 / 3</gadget>
<output>54</output>

<gadget id="calculator">378 / 54</gadget>
<output>7</output>

<result>7</result>