On a map with a scale of 1:6000000, the distance between the two places is 2.5 cm. Find the actual distance between the two places.
在比例尺是1：6000000的地图上，量得两地的距离是2.5厘米，求两地的实际距离．
<gadget id="calculator">1 / 6_000_000</gadget>
<output>1/6_000_000 = around 0</output>

<gadget id="calculator">2.5 / (1/6_000_000) / 100_000</gadget>
<output>150</output>

<result>150</result>