An express train and a slow train are traveling towards each other. The length of the express train is 280 meters, and the length of the slow train is 385 meters. It takes 11 seconds to see a slow car pass by while sitting in a fast car, how many seconds does it take to see a fast car pass by while sitting in a slow car?
一列快车和一列慢车相向而行，快车的车长是280米，慢车的车长是385米．坐在快车上看见慢车驶过的时间是11秒，那么坐在慢车上看见快车驶过的时间是多少秒？
<gadget id="calculator">385 / 11</gadget>
<output>35</output>

<gadget id="calculator">280 / 35</gadget>
<output>8</output>

<result>8</result>