Cars A and B are both driving from point A to point B. The speed of car B is 20% slower than that of car A. It takes 8 hours for car A to complete the journey. How long does it take for car B to complete the journey?
甲、乙两辆车都从A地开往B地，乙车的速度比甲车慢20%，甲车行完全程要8时，乙车行完全程需要多少时？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">8 / (4/5)</gadget>
<output>10</output>

<result>10</result>