Two pulleys connected together, the radius of the big pulley is 0.54m, and the radius of the small pulley is 0.18m, how many revolutions does the small pulley make in one revolution of the big pulley?
两个连在一起的皮带轮，大轮半径0.54米，小轮半径0.18米，大轮转一周，小轮转多少周．
<gadget id="calculator">3.14 * 0.54 * 2</gadget>
<output>3.3912</output>

<gadget id="calculator">3.14 * 0.18 * 2</gadget>
<output>1.1304</output>

<gadget id="calculator">3.3912 / 1.1304</gadget>
<output>3</output>

<result>3</result>