On a map with a scale of (1/4000000), the length of the highway from point A to point B is 24 cm. If a train drives from point A to point B at a speed of 120 kilometers per hour, how many hours does it take to arrive?
在一幅比例尺为(1/4000000)的地图上量从A地到B地的高速公路长24厘米，如果一列汽车以每小时120千米速度从A地开往B地，需几小时到达？
<gadget id="calculator">1 / 4_000_000</gadget>
<output>1/4_000_000 = around 0</output>

<gadget id="calculator">24 / (1/4_000_000) / 100_000 / 120</gadget>
<output>8</output>

<result>8</result>