On a map with a scale of 1:3000000, if the distance between A and B is 16cm, what is the actual distance between the two places in km?
在一幅比例尺为1：3000000的地图上，量得甲、乙两地相距16cm，则两地间的实际距离是多少km．
<gadget id="calculator">1 / 3_000_000</gadget>
<output>1/3_000_000 = around 0</output>

<gadget id="calculator">16 / (1/3_000_000) / 100_000</gadget>
<output>480</output>

<result>480</result>