Two cars, A and B, drive oppositely from two places at the same time. After 8 hours of encountering, car A has just traveled the entire distance (3/5) of the distance. ?
甲、乙两辆汽车同时从两地相对开出，经过8小时相遇，相遇时甲车正好行了全程的(3/5)，两车相遇后，乙车还要行几小时才能行完全程？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) / 8</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 / (1/20)</gadget>
<output>20</output>

<gadget id="calculator">20 - 8</gadget>
<output>12</output>

<result>12</result>