A supersonic plane flies 0.5 kilometers per second, which is 20 times the distance traveled by a train per second. How many kilometers per second does the train travel? (column equation solution)
超音速飞机每秒飞行0.5千米，是火车每秒行驶路程的20倍．火车每秒行驶多少千米？(列方程解答)
<gadget id="calculator">0.5 / 20</gadget>
<output>0.025</output>

<result>0.025</result>