A bridge is 360 meters long. A train passes the bridge at a speed of 18 meters per second. It takes 24 seconds for the train to leave the bridge. How long is the train?
一座大桥长360米，一列火车以每秒18米的速度通过这座大桥，从车头开上桥到车尾离开桥共用去24秒，这列火车长多少米？
<gadget id="calculator">18 * 24</gadget>
<output>432</output>

<gadget id="calculator">432 - 360</gadget>
<output>72</output>

<result>72</result>