On a map with a scale of 1:6000000, the distance between A and B is measured to be 15 cm. What is the actual distance between A and B in kilometers?
在比例尺是1：6000000的地图上，量得甲乙两城之间的距离是15厘米，甲乙两城之间的实际距离是多少千米．
<gadget id="calculator">9_000_000 / 10_000</gadget>
<output>900</output>

<result>900</result>