Cars A and B respectively start from A and B at the same time and drive towards each other, and meet at point C after 12 hours. If the speed of car A remains the same, and car B travels 4 kilometers per hour, then the meeting point is 20 kilometers away from point C; 24 kilometers. Question: What is the distance in miles between A and B?
甲乙两车分别从A、B两地同时出发相向而行，12小时后相遇在点C．如果甲车速度不变，乙车每小时多行4千米，则相遇地点距C点20千米；如果乙车速度不变，甲车每小时多行4千米，则相遇地点距C点24千米．请问：A、B两地间的距离是多少千米？
<gadget id="calculator">20 / 1</gadget>
<output>20</output>

<gadget id="calculator">24 / 1</gadget>
<output>24</output>

<gadget id="calculator">20 + 24</gadget>
<output>44</output>

<gadget id="calculator">44 * 12</gadget>
<output>528</output>

<result>528</result>