A car, the outer diameter of the wheel is about 1 meter, if it turns 100 times per minute on average, it takes 8 minutes to travel from home to school, how many kilometers is the distance from home to school?
一辆汽车，车轮的外直径约是1米，如果平均每分钟转100圈，从家到学校要行8分钟，从家到学校的距离大约是多少千米．
<gadget id="calculator">8 / 1_000</gadget>
<output>1/125 = around 0.008</output>

<gadget id="calculator">3.14 * 1 * 100 * (1/125)</gadget>
<output>2.512</output>

<result>2.512</result>