A train with a body length of 800 meters and a speed of 8 meters per second passes through a bridge with a length of 1600 meters. How long does it take from the front of the train to the bridge and the rear of the train to leave the bridge?
一列火车的车身长800米，以每秒钟8米的速度行驶，经过一座长为1600米的大桥，请问从车头上桥到车尾离桥共需多少时间？
<gadget id="calculator">800 + 1_600</gadget>
<output>2_400</output>

<gadget id="calculator">2_400 / 8</gadget>
<output>300</output>

<result>300</result>