The distance between A and B measured on a map with a scale of 1:2000000 is 6 cm. What is the actual distance between A and B in km?
在比例尺是1：2000000的地图上量的甲乙两地的距离是6厘米，甲乙两地的实际距离是多少km．
<gadget id="calculator">1 / 2_000_000</gadget>
<output>1/2_000_000 = around 0</output>

<gadget id="calculator">6 / (1/2_000_000) / 100_000</gadget>
<output>120</output>

<result>120</result>