On a map with a scale of 1:6000000, the distance from A to B is 3 cm, and the actual distance from A to B is how many kilometers.
在一幅比例为1：6000000的地图上量得甲地到乙地的距离为3厘米，甲地到乙地的实际距离为多少千米．
<gadget id="calculator">1 / 6_000_000</gadget>
<output>1/6_000_000 = around 0</output>

<gadget id="calculator">3 / (1/6_000_000) / 100_000</gadget>
<output>180</output>

<result>180</result>