On a map with a scale of 1:60000000, the air line between A and B is 6 cm long. How long does it take for an airplane to fly from A to B at a speed of 450 kilometers per hour?
在比例尺是1：60000000的地图上，量的甲、乙两地之间的航空线长6厘米，一架飞机以每小时450千米的速度从甲地飞往乙地，需要多少时间？
<gadget id="calculator">1 / 60_000_000</gadget>
<output>1/60_000_000 = around 0</output>

<gadget id="calculator">6 / (1/60_000_000) / 100_000 / 450</gadget>
<output>8</output>

<result>8</result>