The radius of a bicycle wheel is 30 cm, and the wheel rotates 150 times per minute, how many meters does the car move forward per minute?
一辆自行车的车轮半径是30厘米，车轮每分钟转150圈，车子每分钟前进了多少米？
<gadget id="calculator">150 / 100</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">30 * 2 * 3.14 * (3/2)</gadget>
<output>282.6</output>

<result>282.6</result>