On a map with a scale of 1:150,000, the distance between city A and city B on the map is 12 cm. What is the actual distance in kilometers between city A and city B?
在一副比例尺为1：150000的地图上，量得A市和B市的图上距离为12厘米，则A市和B市的实际距离是多少千米．
<gadget id="calculator">1 / 150_000</gadget>
<output>1/150_000 = around 0.000007</output>

<gadget id="calculator">12 / (1/150_000) / 100_000</gadget>
<output>18</output>

<result>18</result>