The distance between A and B is 288 kilometers. A bus and a truck drive from A to B at the same time. The bus takes 3.6 hours and the truck takes 2.5 hours. How many kilometers per hour are passenger cars slower than trucks on average?
甲、乙两地相距288千米，一辆客车和一辆货车同时由甲地开往乙地，客车用了3.6时，货车用了2.5时．客车平均每时比货车慢多少千米？
<gadget id="calculator">288 / 2.5</gadget>
<output>115.2</output>

<gadget id="calculator">288 / 3.6</gadget>
<output>80</output>

<gadget id="calculator">115.2 - 80</gadget>
<output>35.2</output>

<result>35.2</result>