The distance between A and B is 728 kilometers. A passenger car and a truck leave from A and B at the same time. The bus travels 76 kilometers per hour. The two vehicles meet after 5.2 hours. How many kilometers per hour does the truck travel?
甲、乙两地相距728千米，一辆客车和货车同时从甲、乙两地相对开出，客车每小时行76千米，两车出发后5.2小时相遇，货车每小时行多少千米？
<gadget id="calculator">728 / 5.2</gadget>
<output>140</output>

<gadget id="calculator">140 - 76</gadget>
<output>64</output>

<result>64</result>