The outer diameter of a car tire is 1 meter, and it rotates 200 times per minute. How many minutes does it take for the car to pass a 3140-meter-long bridge across the river?
一辆汽车轮胎的外直径是1米，每分钟转200周，这辆汽车经过一座长3140米的跨江大桥，需要多少分钟？
<gadget id="calculator">3.14 * 1 * 200</gadget>
<output>628</output>

<gadget id="calculator">3_140 / 628</gadget>
<output>5</output>

<result>5</result>