The distance between A and B is 600 kilometers. A passenger car and a truck drive from the two places at the same time and meet each other for 5 hours. The truck travels 50 kilometers per hour. How many kilometers per hour does the passenger car travel?
甲乙两地相距600千米，一辆客车和一辆货车同时从两地相向开出5小时相遇，货车每小时行50千米，客车每小时行多少千米？
<gadget id="calculator">600 / 5</gadget>
<output>120</output>

<gadget id="calculator">120 - 50</gadget>
<output>70</output>

<result>70</result>