Xiaodong has a bicycle. The diameter of the wheel is about 66 cm. If it rotates 100 times per minute on average, the distance from home to school is 4144.8 meters. How many minutes will it take?
小东有一辆自行车，车轮的直径大约是66厘米，如果平均每分钟转100周，从家到学校的路程是4144.8米，大约需要多少分钟？
<gadget id="calculator">3.14 * 0.66</gadget>
<output>2.0724</output>

<gadget id="calculator">2.0724 * 100</gadget>
<output>207.24</output>

<gadget id="calculator">4_144.8 / 207.24</gadget>
<output>20</output>

<result>20</result>