OG12数据充分性128题求教

hz0324

A school administor will asign each student in a group of n student to 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 the classroom so that each classroom has the same number of students assigned to it
2.It is possible to assign each of 13n students to one of the classroom so that each classroom has the same number of students assigned to it

小弟愚昧，答案解析看不明白，求高手指教啊

爱吃巧克力

把一个小组里面N个学生，放到M个教室，问你在3<m<13<n的情况下，有可能每个教室被放置的学生一样多吗？也就是问你N能被M整除吗？
今天也做了这题，觉得答案有问题，看og的解释，它貌似没有把3<m<13<n这个条件考虑进去。。。。我本人选的D，期待解答

hz0324

我知道答案了，你用搜索功能在数学版搜128，有这道题的答案！

一生涯凡人也

我同意2楼说的，我也很疑惑，求解答