The distance between A and B is 425 kilometers. A car has traveled 173 kilometers from A to B. The remaining distance is 42 kilometers per hour. How many hours will it take to get there?
甲、乙两地相距425千米，一辆汽车从甲地到乙地，已经行了173千米，剩下的路程每小时行42千米，还要几小时才能到达？
<gadget id="calculator">425 - 173</gadget>
<output>252</output>

<gadget id="calculator">252 / 42</gadget>
<output>6</output>

<result>6</result>