On a map with a scale of 1:2000000, the length of the road between A and B is measured to be 36cm. How many hours does it take for a car to drive from point A to point B at an average speed of 80 km/h?
在一幅比例尺为1：2000000的地图上，量得甲、乙两地之间的公路长36cm．一辆汽车以平均每小时80km的速度从甲地开往乙地，要几小时才能到达？
<gadget id="calculator">1 / 2_000_000</gadget>
<output>1/2_000_000 = around 0</output>

<gadget id="calculator">36 / (1/2_000_000) / 100_000 / 80</gadget>
<output>9</output>

<result>9</result>