On a map with a scale of 1:150,000, the distance between City A and City B on the map is 6.4 cm. What is the actual distance in kilometers?
在一幅比例尺1：150000的地图上，量得A市和B市的图上距离是6.4厘米，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">6.4 / (1/150_000) / 100_000</gadget>
<output>9.6</output>

<result>9.6</result>