A part with a length of 5 mm is drawn on a drawing with a scale of 20:1, how many centimeters should it draw?
一种零件长5毫米，画在比例尺是20﹕1的图纸上，应画多少厘米．
<gadget id="calculator">20 / 1</gadget>
<output>20</output>

<gadget id="calculator">20 / 10</gadget>
<output>2</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<result>10</result>