On a map with a scale of 1:200,000, it represents the actual distance of 28 kilometers, how many centimeters should be drawn on the map.
在一幅比例尺是1：200000的地图上，表示实际28千米的距离，在地图上应画多少厘米．
<gadget id="calculator">1 / 200_000</gadget>
<output>1/200_000 = around 0.000005</output>

<gadget id="calculator">28 * 100_000 * (1/200_000)</gadget>
<output>14</output>

<result>14</result>