On a 1:3,000,000 map, the distance between airports A and B is 8 cm. How long does it take for a passenger plane to fly from airport A to airport B at a speed of 600 kilometers per hour?
在一幅1：3000000的地图上，量得甲、乙两地机场的距离是8厘米，一架客机以每小时600千米的速度从甲地机场飞往乙地机场，需要几小时？
<gadget id="calculator">1 / 3_000_000</gadget>
<output>1/3_000_000 = around 0</output>

<gadget id="calculator">8 / (1/3_000_000) / 100_000 / 600</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>