There is a train with a length of 168 meters and a speed of 18 kilometers per hour passing through an iron bridge with a length of 862 meters.
有一列火车，长168米，以每小时18千米的速度通过一座长862米的铁桥，以车头进桥到车尾离桥一共需要多少时间？
<gadget id="calculator">862 + 168</gadget>
<output>1_030</output>

<gadget id="calculator">1_030 / 1_000 / 18</gadget>
<output>103/1_800 = around 0.057222</output>

<result>103/1_800 = around 0.057222</result>