On a map with a scale of 1:6,000,000, the distance between the two places is measured to be 12 centimeters. If a train departs from one place at a speed of 80 kilometers per hour, how many hours will it take to complete the journey?
在一幅比例尺为1：6000000的地图上，量得两地间的距离是12厘米，一列火车以每小时80千米的速度从一地出发，几小时才能行完全程？
<gadget id="calculator">1 / 6_000_000</gadget>
<output>1/6_000_000 = around 0</output>

<gadget id="calculator">12 / (1/6_000_000) / 100_000 / 80</gadget>
<output>9</output>

<result>9</result>