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Answer : 2 7! x 6! Explanation : Answer: B) 7! x 6! Explanation: The students should sit in between two teachers. There are 7 gaps in between teachers when they sit in a roundtable. This can be done in 7P6ways. 7 teachers can sit in (7-1)! ways.  Required no.of ways is = 7P6.6! = 7!.6!

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