Q28:

A school administrator will assign each student in a group of n students 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 m classrooms 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 m classrooms so that each

classroom has the same number of students assigned to it.

请教解法

13不在范围内, 且为质数,因此N/M可整除,13N/M 方可整除 故B 正确