160-meter-long train passes through a 240-meter-long tunnel. It takes 2 minutes to enter the tunnel until it leaves completely. How many meters does the train travel per minute?
一列长160米的火车穿过一条长240米的隧道，进入隧道直到完全离开用2分钟，火车每分钟行多少米？
<gadget id="calculator">160 + 240</gadget>
<output>400</output>

<gadget id="calculator">400 / 2</gadget>
<output>200</output>

<result>200</result>