On a map with a scale of 1:4,000,000, the distance from point A to point B is 6 cm. If a train travels from point A to point B at a speed of 100 kilometers per hour, how many hours will it take to get there?
在比例尺1：4000000的地图上量得甲地到乙地的距离是6厘米，一辆列车以每小时100千米的速度从甲地到乙地，多少小时可以到达？
<gadget id="calculator">1 / 4_000_000</gadget>
<output>1/4_000_000 = around 0</output>

<gadget id="calculator">6 / (1/4_000_000) / 100_000 / 100</gadget>
<output>12/5 = around 2.4</output>

<result>12/5 = around 2.4</result>