It takes 6 hours for a truck to travel from point A to point B, and the speed of a car is twice that of the truck. How many hours does it take for this car to travel from point A to point B?
一辆货车从甲地到乙地要行驶6小时，一辆轿车的速度是这辆货车的2倍，这辆轿车从甲地到乙地要行驶几小时？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<result>3</result>