A passenger car and a car drive toward each other from two stations 540 kilometers apart at the same time, and the two cars meet after 3 hours. The passenger car travels 80 kilometers per hour, how many kilometers per hour is the car?
一辆客车和一辆轿车同时从相距540千米的两站相向而行，3小时后两车相遇．客车每小时行80千米，轿车每小时多少千米？
<gadget id="calculator">540 / 3</gadget>
<output>180</output>

<gadget id="calculator">180 - 80</gadget>
<output>100</output>

<result>100</result>