A passenger car and a truck depart from two places 385km apart at the same time, and they meet after 3.5 hours. It is known that the passenger car travels 60 km per hour, how many kilometers per hour does the truck travel?
一辆客车和一辆货车同时从相距385km的两地相对开出，3.5小时后两车相遇．已知客车每小时行60km，货车每小时行多少千米？
<gadget id="calculator">385 / 3.5</gadget>
<output>110</output>

<gadget id="calculator">110 - 60</gadget>
<output>50</output>

<result>50</result>