A train passes through a tunnel with a total length of 1800 meters in 2 minutes at a speed of 16 meters per second. How long is the train in meters?
一列火车以16米每秒的速度2分钟就通过了全长是1800米的隧道，求车身长多少米？
<gadget id="calculator">16 * 2 * 60</gadget>
<output>1_920</output>

<gadget id="calculator">1_920 - 1_800</gadget>
<output>120</output>

<result>120</result>