Two cars A and B drive towards each other from places A and B at the same time. Car A travels 80 kilometers per hour, and car B travels 75 kilometers per hour. After 2.5 hours, the two cars meet. The distance between A and B is How many kilometers?
甲、乙两辆汽车同时从A、B两地相向开出，甲车每小时行80千米，乙车每小时行75千米，经过.2.5小时后两车相遇，A、B两地相距多少千米？
<gadget id="calculator">80 + 75</gadget>
<output>155</output>

<gadget id="calculator">155 * 2.5</gadget>
<output>387.5</output>

<result>387.5</result>