Math Problem Statement
Suppose 6 people A,B,C,D,E,F are seated around a round table (where rotating the entire seating arrangement counts as a di ! erent arrangement)
Solution
When arranging people in a circle, we use the formula for circular permutations, which adjusts for the fact that rotations of the arrangement are considered identical. The number of unique arrangements of people around a circular table is given by:
For people, the calculation is:
Thus, there are 120 unique seating arrangements for 6 people around a round table.
Would you like a breakdown of this explanation, an example arrangement, or further exploration of this topic? Here are related questions you might find interesting:
- What happens if the table is not round? How do arrangements change?
- How many arrangements are possible if two specific people must sit next to each other?
- If there are identical twins among the six, how does that affect the count?
- What is the number of arrangements if specific seats (e.g., for A and B) are fixed?
- Can you generalize the formula for people seated in a circle?
Tip: To better understand circular permutations, imagine numbering the seats and assigning people to those positions—it helps clarify rotation-based equivalences.
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Math Problem Analysis
Mathematical Concepts
Combinatorics
Permutations
Circular Permutations
Formulas
(n - 1)! for circular permutations
Theorems
Circular Permutation Theorem
Suitable Grade Level
Grades 10-12
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