The diameter of a bicycle tire is 0.6 meters. If it rotates 200 times per minute, how long will it take to pass a bridge with a length of 1507.2 meters?
一辆自行车轮胎的直径是0.6米，如果每分钟转200圈，那么通过一座长1507.2米的大桥，需要多长时间？
<gadget id="calculator">3.14 * 0.6 * 200</gadget>
<output>376.8</output>

<gadget id="calculator">1_507.2 / 376.8</gadget>
<output>4</output>

<result>4</result>