A train is 180 meters long and travels 24 meters per second. How long does it take to pass a 1,500-meter-long bridge from the front of the train to the end of the train when it leaves the bridge?
一列火车长180米，每秒行驶24米，要通过一座长1500米的大桥，从车头上桥到车尾离桥共需多少时间？
<gadget id="calculator">180 + 1_500</gadget>
<output>1_680</output>

<gadget id="calculator">1_680 / 24</gadget>
<output>70</output>

<result>70</result>