The distance between A and B is 108 kilometers. A car and a truck leave from A and B at the same time. The car travels 75 km per hour. After 0.8 hours, the two cars meet. How many miles does the truck travel per hour?
A、B两城相距108千米，一辆轿车和一辆货车同时从A、B两地相向开出．轿车每小时行75km，0.8小时后，两车相遇．货车每小时行多少千米？
<gadget id="calculator">108 / 0.8</gadget>
<output>135</output>

<gadget id="calculator">135 - 75</gadget>
<output>60</output>

<result>60</result>