Cars A and B are traveling towards each other from A and B at the same time. A travels 60 kilometers per hour, and B travels 80 kilometers per hour. They meet each other in 6 hours. How many miles did car B travel further than car A?
甲、乙两车同时从A、B两地相向而行，甲每小时行60千米，乙每小时行80千米，6小时相遇．乙车比甲车多行多少千米？
<gadget id="calculator">80 - 60</gadget>
<output>20</output>

<gadget id="calculator">20 * 6</gadget>
<output>120</output>

<result>120</result>