Math Problem Statement

安排包含x和y在內的12個人分坐成兩行,每行有6個人。若x和y須相鄰而坐,求安排坐位的方法數目

Solution

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Math Problem Analysis

Mathematical Concepts

Combinatorics
Permutations and Combinations

Formulas

Number of ways to arrange n items in two groups of size k and (n-k): \binom{n}{k} \times k! \times (n-k)!
Factorial: n! = n × (n-1) × ... × 1

Theorems

Permutation Theorem
Combination Formula

Suitable Grade Level

Grades 10-12