The distance between Anhua and Yongfu is 204 kilometers. It takes 2.5 hours for car A to travel, and 3 hours for car B to travel. How much more kilometers does car A travel per hour than car B?
安华与永福两地相距204千米，甲车需要走2.5小时，乙车需要走3小时，甲车每小时比乙车多行多少千米？
<gadget id="calculator">204 / 2.5</gadget>
<output>81.6</output>

<gadget id="calculator">204 / 3</gadget>
<output>68</output>

<gadget id="calculator">81.6 - 68</gadget>
<output>13.6</output>

<result>13.6</result>