On a map with a scale of 1:40000, the distance between the two places is 5 cm. What is the actual distance between the two places?
在比例尺1：40000的地图上量得两地的距离是5厘米，这两地之间的实际距离是多少米．
<gadget id="calculator">1 / 40_000</gadget>
<output>1/40_000 = around 0.000025</output>

<gadget id="calculator">5 / (1/40_000)</gadget>
<output>200_000</output>

<gadget id="calculator">200_000 / 100</gadget>
<output>2_000</output>

<result>2_000</result>