On a map with a scale of 1:3000000, the distance between A and B is 8cm. A car drives from city A to city B at a speed of 60km per hour, how long does it take to arrive?
在比例尺是1：3000000的地图上，甲、乙两城的距离是8cm．一辆汽车每时60km的速度从甲城开往乙城，几时才能到达？
<gadget id="calculator">1 / 3_000_000</gadget>
<output>1/3_000_000 = around 0</output>

<gadget id="calculator">8 / (1/3_000_000) / 100_000 / 60</gadget>
<output>4</output>

<result>4</result>