Two cars, A and B, drive from A and B respectively at the same time. Car A travels 80 kilometers per hour, and car B travels 60 kilometers per hour. After 3 hours, the two cars have traveled 37.5% of the whole journey. How many kilometers are there between A and B? (solution by equation)
甲、乙两辆汽车分别同时从A、B两地相对开出，甲车每小时行80千米，乙车每小时行60千米，经过3小时两车共行了全程的37.5%．A、B两地相距多少千米？(用方程解)
<gadget id="calculator">420 / 0.375</gadget>
<output>1_120</output>

<result>1_120</result>