The distance between A and B is 471 kilometers. A passenger car and a truck depart from the two places at the same time and meet each other after 3 hours. It is known that the passenger car travels 82 kilometers per hour, how many kilometers per hour does the truck travel?
甲、乙两地相距471千米，一辆客车和一辆货车同时分别从两地相对开出，经过3小时相遇．已知客车每小时行82千米，货车每小时行多少千米？
<gadget id="calculator">471 / 3</gadget>
<output>157</output>

<gadget id="calculator">157 - 82</gadget>
<output>75</output>

<result>75</result>