The distance from A to B is 270 kilometers. A car travels 180 kilometers from A to B in 2 hours. At this speed, how many hours will it take to reach B?
甲地到乙地的距离是270千米，一辆轿车从甲地开往乙地，2小时行了180千米，照这样的速度，到乙地还要多少小时？
<gadget id="calculator">270 - 180</gadget>
<output>90</output>

<gadget id="calculator">180 / 2</gadget>
<output>90</output>

<gadget id="calculator">90 / 90</gadget>
<output>1</output>

<result>1</result>