Two cars drive opposite each other from cities A and B at the same time. Car A travels 80 kilometers per hour, and car B travels 60 kilometers per hour. They meet each other in 11 hours. How many kilometers are the distance between cities A and B?
两辆汽车同时从甲乙两城相对开出，甲车每小时行80千米，乙车每小时行60千米，11小时相遇，甲乙两城相距多少千米？
<gadget id="calculator">60 + 80</gadget>
<output>140</output>

<gadget id="calculator">140 * 11</gadget>
<output>1_540</output>

<result>1_540</result>