On a map with a scale of 1:6000000, the distance between A and B is 8 cm. A train starts at 9 am and travels from point A to point B at a speed of 120 kilometers per hour. When will it arrive at point B in the afternoon?
在一幅比例尺是1：6000000的地图上，量得A、B两地间距离是8厘米．一列火车上午9时开始以每小时120千米的速度从A地开往B地，则下午几时到达B地？
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