The diameter of the tire of the bicycle wheel is 50 cm. If it turns 100 times per minute, how many minutes will it take to pass the 1570-meter bridge?
自行车车轮外胎直径是50厘米，按每分钟转100圈计算，通过1570米的大桥要多少分钟？
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">3.14 * (1/2) * 100</gadget>
<output>157</output>

<gadget id="calculator">1_570 / 157</gadget>
<output>10</output>

<result>10</result>