排列组合问题与实际生活联系紧密,生动有趣,题型多样,思路灵活.下面介绍几种行之有效的解题策略,供大家参考.一、相邻问题捆绑法例16名同学排成一排,其中甲、乙两位同学必须排在一起,不同的排法数为()(A)720(B)360(C)240(D)120解因甲、乙两位同学要排在一起,故把甲、乙两人捆在一起看作一人,与其余四人进 Arrangement and combination problems are closely related to real life, lively and interesting, various types of questions, and flexible ideas. Here are some effective strategies to solve problems for your reference. First, the adjacent problem binding law 16 students lined up in a row, Among them, two students A and B must be ranked together. The number of different ways is () (A) 720 (B) 360 (C) 240 (D) 120 Solution A and B Two students must be together, so Think of A and B together as one person and the rest