[求助]GWD-12-7（搜过了，没人问）

Q7:

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.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

Answer:   (B)

这题答案是B么？？本来我也选的B，后来一同学跟我说，题目问的是否POSSIBLE。所以条件1也充分。想想我觉得也有道理。昏了

求教NN来解答！谢谢！

应该选B吧

12-7      http://forum.chasedream.com/dispbbs.asp?boardID=22&ID=59708

12-7      http://forum.chasedream.com/dispbbs.asp?BoardID=22&ID=70031

12-7     http://forum.chasedream.com/dispbbs.asp?BoardID=22&ID=74314

置顶帖里就有3题讨论链接...

看看这个吧：

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