On a map with a scale of 1:250000, the distance between A and B is 8 cm. How many kilometers is the actual distance between A and B?
在比例尺是1：250000的地图上，量得甲、乙两地的距离为8厘米，甲、乙两地的实际距离为多少千米？
<gadget id="calculator">1 / 250_000</gadget>
<output>1/250_000 = around 0.000004</output>

<gadget id="calculator">8 / (1/250_000) / 100_000</gadget>
<output>20</output>

<result>20</result>