The diameter of a bicycle tire is 0.72 meters. How many miles per hour can the bicycle travel if the wheels make 120 revolutions per minute?
自行车轮胎的直径是0.72米．如果车轮每分钟转120周，这辆自行车每小时可以行多少米？
<gadget id="calculator">3.14 * 0.72</gadget>
<output>2.2608</output>

<gadget id="calculator">2.2608 * 120</gadget>
<output>271.296</output>

<gadget id="calculator">271.296 * 60</gadget>
<output>16_277.76</output>

<result>16_277.76</result>