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You have to organize a chat with friends who live far away. Find a convenient time so that no one has to be up in the middle of the night. Which group can do it easily ? Why is it so difficult for one of the groups? Who has to be up in the middle of the night? Group 1 : New York City, London, Tokyo, Camberra. Group 2: Manchester, Miami, Paris, Boston Group 3: Oslo, Berlin, Madrid, Athens |
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