The distance between A and B is 200 kilometers. A car travels from A to B and travels 120 kilometers in 3 hours. At this speed, how many hours will it take?
甲乙两地相距200千米，一辆汽车从甲地开往乙地，3小时行驶120千米，照这样的速度，剩下的还要行多少小时？
<gadget id="calculator">200 - 120</gadget>
<output>80</output>

<gadget id="calculator">120 / 3</gadget>
<output>40</output>

<gadget id="calculator">80 / 40</gadget>
<output>2</output>

<result>2</result>