A train is 360 meters long, and its speed is 12 meters per second when it passes a bridge with a length of 2640 meters. How long does it take for the train to pass this bridge?
一列火车长360米，它通过一座长2640米的大桥时的速度是12米/秒，这列火车通过这座大桥共需要多长时间？
<gadget id="calculator">2_640 + 360</gadget>
<output>3_000</output>

<gadget id="calculator">3_000 / 12</gadget>
<output>250</output>

<result>250</result>