GWD 15-28 A school administrator will assign each student in a group of n students tp one of m classrooms. If 3<m<13<n, is it possible to assign each of the n students to one of the m classrooms so that each classroom has the same number of students assigned to it? (1) It is possible to assign each of 3n students to one of m classrooms so that each classroom has the samr number of students assigned to it. (2) It is possible to assign each of 13n students to one of m classrooms so that each classroom has the samr number of students assigned to it. 为何答案是B? 第一条件也可成立啊? 假设n=14，m=7，3n就是42，42可以被7整除，不是吗? 请指点！ | 
