A train is 120 meters long and passes through an 880-meter-long bridge at a speed of 50 km/h. How many seconds does it take for the train to leave the bridge from when it starts to get on the bridge?
一列火车长120米，以50千米/小时的速度通过长为880米的大桥，那么火车从开始上桥到完全离开桥需要几秒？
<gadget id="calculator">120 + 880</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 / 10_000 / 50</gadget>
<output>1/500 = around 0.002</output>

<gadget id="calculator">(1/500) * 3_600</gadget>
<output>36/5 = around 7.2</output>

<result>36/5 = around 7.2</result>