题目内容
甲、乙分别从A、B两地同时出发赶往B、A两地办事，在两地之间C地相遇，之后两人继续往前走。办完事后，两人又同时出发返回，在两地之间D地再次相遇。已知A、B两地相距11千米，C、D两地相距3千米，甲的速度快于乙，若两人分别从A、B同时出发不断往返于两地之间，那么第2次相遇时距离A地多少千米
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