求助一道GWD31套 15-28 完全读不懂题啊

belchang

Q28:

A school administrator will assign eachstudent in a group of n students to one of m classrooms.  If 3 < m < 13 < n, isit possible to assign each of the n students to one of the mclassrooms so that each classroom has the same number of students assigned toit?

(1)  It is possible to assign each of 3nstudents to one of m classrooms so that each classroom has the same numberof students assigned to it.

(2)  It is possible to assign each of 13nstudents to one of m classrooms so that eachclassroom has the same number of students assigned to it.

答案给的是B,只有条件2充分，请问各位牛牛，这题什么意思啊，我是完全没弄明白。谢谢各位赐教。