The distance between A and B measured on a map with a scale of 1:6000000 is 12 centimeters. Car A travels 70 kilometers per hour, and car B travels 50 kilometers per hour. How many hours can the two cars meet?
一幅比例尺为1：6000000的地图上量的甲乙两地距离是12厘米，甲车每小时行70千米，乙车每小时行50千米，几小时两车可以相遇？
<gadget id="calculator">1 / 6_000_000</gadget>
<output>1/6_000_000 = around 0</output>

<gadget id="calculator">50 + 70</gadget>
<output>120</output>

<gadget id="calculator">12 / (1/6_000_000) / 100_000 / 120</gadget>
<output>6</output>

<result>6</result>