A bicycle with a tire diameter of 6 decimeters, if it rotates 100 times per minute, how many minutes will it take to pass a 94.2-meter-long bridge?
一辆自行车，轮胎外直径6分米，如果每分钟转100周，要通过一座长94.2米的桥，大约需要几分钟？
<gadget id="calculator">6 / 10</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">3.14 * (3/5) * 100</gadget>
<output>188.4</output>

<gadget id="calculator">94.2 / 188.4</gadget>
<output>0.5</output>

<result>0.5</result>