On a map with a scale of 1:6000000, the length of the highway between A and B is measured to be 6 cm. A passenger car and a truck leave from A and B at the same time. The passenger car travels 80 kilometers per hour, and the truck travels 70 kilometers per hour. km. How many hours later will the two cars meet?
在比例尺是1：6000000的地图上，量得甲乙两地的公路长6厘米，一辆客车和一辆货车同时从甲乙两地相对开出，客车每小时行80千米，货车每小时行70千米．两车几小时后相遇？
<gadget id="calculator">1 / 6_000_000</gadget>
<output>1/6_000_000 = around 0</output>

<gadget id="calculator">80 + 70</gadget>
<output>150</output>

<gadget id="calculator">6 / (1/6_000_000) / 100_000 / 150</gadget>
<output>12/5 = around 2.4</output>

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