On a map with a scale of 1:6,000,000, the distance between A and B is 4.5 cm. A car drives from A to B at 54 kilometers per hour. How long does it take to arrive?
在一幅比例尺是1：6000000的地图上，量得甲、乙两地相距4.5厘米，一辆汽车从甲地开往乙地，每小时行54千米，几小时到达？
<gadget id="calculator">1 / 6_000_000</gadget>
<output>1/6_000_000 = around 0</output>

<gadget id="calculator">4.5 / (1/6_000_000) / 100_000 / 54</gadget>
<output>5</output>

<result>5</result>