3.77 There are 6 identical chairs at a round table. In how many ways can 6 people sit at this table such that: (a) persons A and B sit next to each other b) persons A and B sit opposite each other c) only person C sits between persons A and B d) persons A and B sat opposite each other and at the same time persons C and D sat opposite each other? Note: Two table arrangements are considered different if in these arrangements at least one person has different neighbors.

3.77 There are 6 identical chairs at a round table. In how many ways can 6 people sit at this table such that: (a) persons A and B sit next to each other b) persons A and B sit opposite each other c) only person C sits between persons A and B d) persons A and B sat opposite each other and at the same time persons C and D sat opposite each other? Note: Two table arrangements are considered different if in these arrangements at least one person has different neighbors.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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