Two cars start from A and B at the same time and drive toward each other. Car A travels 60 kilometers per hour, which is 1/5 more than car B per hour. After 3 hours, the two cars traveled 60% of the whole journey and more than 30 kilometers. How many kilometers are there between A and B?
两辆汽车同时从A，B两地出发相向而行．甲车每小时行60千米，比乙车每小时多行(1/5)．3小时后，两车共行了全程的60%多30千米．A，B两城相距多少千米？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">60 / (6/5)</gadget>
<output>50</output>

<gadget id="calculator">60 + 50</gadget>
<output>110</output>

<gadget id="calculator">110 * 3</gadget>
<output>330</output>

<gadget id="calculator">330 - 30</gadget>
<output>300</output>

<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">300 / (3/5)</gadget>
<output>500</output>

<result>500</result>