Cars A and B travel towards each other from cities A and B at the same time. After a period of time, car A traveled 40% of the journey, and car B traveled 35% of the journey. At this time, the distance between the two cars is 82 kilometers. How many kilometers is the road between cities A and B?
甲、乙两车同时从A、B两城，相向而行．经过一段时间后，甲车行了全程的40%，乙车行了全程的35%，这时两车还相距82千米，A、B两城之间的公路长多少千米？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">1 - (2/5) - (7/20)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">82 / (1/4)</gadget>
<output>328</output>

<result>328</result>