Two cars, fast and slow, start from the same place at the same time, and chase a cyclist in front along the same road. It took the two cars 6 minutes and 10 minutes to catch up with the cyclist. It is known that the express train travels 400 meters per minute and the slow train travels 320 meters per minute. How many meters does the cyclist travel per minute?
快慢两车同时从同一地点出发，沿同一公路追赶前面的一个骑车的人．两车分别用了6分钟、10分钟追上骑车人．已知快车每分钟行400米，慢车每分钟行320米．骑车人每分钟行多少米．
<gadget id="calculator">400 * 6</gadget>
<output>2_400</output>

<gadget id="calculator">320 * 6</gadget>
<output>1_920</output>

<gadget id="calculator">2_400 - 1_920</gadget>
<output>480</output>

<gadget id="calculator">10 - 6</gadget>
<output>4</output>

<gadget id="calculator">480 / 4</gadget>
<output>120</output>

<gadget id="calculator">320 - 120</gadget>
<output>200</output>

<result>200</result>