Two cars, A and B, go from point A to point B at the same time. Car A travels 55 kilometers per hour, and car B travels 65 kilometers per hour. After 3 hours. How many miles are the two cars apart?
甲乙两车同时从A地到B地，甲车每小时行55千米，乙车每小时行65千米，经过3小时．两车相距多少千米？
<gadget id="calculator">65 - 55</gadget>
<output>10</output>

<gadget id="calculator">10 * 3</gadget>
<output>30</output>

<result>30</result>