On one side of the road, a poplar tree is planted every 8 meters. Xiao Li saw 401 trees in 4 minutes by car, and asked how many meters the car traveled per minute?
马路的一边每隔8米栽一棵杨树．小李乘汽车4分钟看到401棵树，问汽车每分钟行多少米？
<gadget id="calculator">401 - 1</gadget>
<output>400</output>

<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">400 * 2</gadget>
<output>800</output>

<result>800</result>