A and B start from places A and B, which are 24 kilometers apart, and walk in the same direction. After a period of time, A catches up with B at point C. If A walks 1 kilometer, it will take 2 hours less time for A to catch up with B, and the catching up point is 12 kilometers away from point C. Let me ask: If A and B travel from A and B at the same speed at the same time How many hours does it take to meet each other when we set off to meet each other?
甲、乙两人分别从相距24千米的A、B两地同时出发同向而行，一段时间后甲在C点追上乙，如果甲每小时多走1千米，而乙每小时少走1千米，则甲追上乙的时间会少用2小时，且追上的地点与C点相距12千米，试问：如果甲、乙两人以原速度分别从A、B两地同时出发相向而行，需要几个小时相遇？
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