The distance between A and B is 250 kilometers. On a map with a scale of l:2000000. How many centimeters should be drawn in the two places.
甲乙两地相距250千米．在比例尺为l：2000000的地图上．两地应画多少厘米．
<gadget id="calculator">1 / 2_000_000</gadget>
<output>1/2_000_000 = around 0</output>

<gadget id="calculator">250 * 100_000 * (1/2_000_000)</gadget>
<output>25/2 = around 12.5</output>

<result>25/2 = around 12.5</result>