On a plan with a scale of 1:8000, the distance between A and B is measured as 5 cm. What is the actual distance between A and B?
在比例尺为1：8000的一幅平面图上量得甲乙两地的距离为5厘米，甲乙两地实际相距多少米．
<gadget id="calculator">1 / 8_000</gadget>
<output>1/8_000 = around 0.000125</output>

<gadget id="calculator">5 / (1/8_000)</gadget>
<output>40_000</output>

<gadget id="calculator">40_000 / 100</gadget>
<output>400</output>

<result>400</result>