The actual distance between the two villages is 1500m, how many centimeters are drawn on the map with a scale of 1:20000.
两村实际距离1500m，画在比例尺是1：20000的地图上有多少cm．
<gadget id="calculator">1_500 * 100</gadget>
<output>150_000</output>

<gadget id="calculator">1 / 20_000</gadget>
<output>1/20_000 = around 0.00005</output>

<gadget id="calculator">150_000 * (1/20_000)</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>