On a scale of 1:5000000, how many centimeters is 150km drawn on the map?
在1：5000000的比例尺中，150km画在图上是多少cm．
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">150 * 100_000 * (1/5_000_000)</gadget>
<output>3</output>

<result>3</result>