A car drives from place A to place B, which is 350km away, and travels 140km in the first 2 hours. At this speed, how many hours will it take for the car to complete the journey?
一辆汽车从相距350km的甲地开往乙地，前2小时行驶了140km，照这样的速度，这辆汽车行完全程用几小时？
<gadget id="calculator">140 / 2</gadget>
<output>70</output>

<gadget id="calculator">350 / 70</gadget>
<output>5</output>

<result>5</result>