The passenger car and the freight car leave oppositely from two stations A and B at the same time. The passenger car travels 54 kilometers per hour, and the freight car travels 48 kilometers per hour. After the two cars meet, they continue to move forward at the original speed. They also return immediately after station A, and when the two cars meet again, the passenger car travels 21.6 kilometers longer than the truck. How many kilometers is the distance between the two stations A and B?
客车和货车同时从甲乙两站相对开出，客车每小时行54千米，货车每小时行48千米，两车相遇后又以原来的速度继续前进，客车到乙站后立即返回，货车到甲站后也立即返回，两车再次相遇时，客车比货车多行21.6千米．求甲乙两站间的路程是多少千米？
<gadget id="calculator">54 + 48</gadget>
<output>102</output>

<gadget id="calculator">54 - 48</gadget>
<output>6</output>

<gadget id="calculator">21.6 / 6</gadget>
<output>3.6</output>

<gadget id="calculator">3.6 / 3</gadget>
<output>1.2</output>

<gadget id="calculator">102 * 1.2</gadget>
<output>122.4</output>

<result>122.4</result>