From A to B, if you ride a bicycle to travel 10 kilometers per hour, it takes 3 hours. If you take a car, it only takes 30 minutes. How many kilometers per hour does the car travel?
从甲地去乙地，如果骑自行车每小时行10千米，要骑3小时，如果乘汽车，只需30分钟，汽车每小时行多少千米？
<gadget id="calculator">3 / 0.5</gadget>
<output>6</output>

<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<result>60</result>