On a map with a scale of 1:1000000, how many centimeters are used to represent 50 kilometers.
在一幅比例尺是1：1000000的地图上，用多少厘米表示50千米．
<gadget id="calculator">1 / 1_000_000</gadget>
<output>1/1_000_000 = around 0.000001</output>

<gadget id="calculator">50 * 100_000 * (1/1_000_000)</gadget>
<output>5</output>

<result>5</result>