GRE网络课堂逻辑笔记-孔毅主讲[5]

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编辑点评: 虽然GRE的数学考试对许多同学来说不是最难的部分,但仍旧还是有一些难题的存在,这里就解题思路方面为大家例举一些GRE数学疑难问题的解题方法,供大家参考学习。

Passage 5

Eight adjacent offices completely enclose a circular central courtyard. The offices are numbered consecutively, beginning at one of the offices with 1 and proceeding clockwise to 8. Eight junior executives-J, K, L, M, N, O, P, and R-are to occupy the offices, one to an office. The assignment of offices is subject to the following restrictions:

J is allowed first choice of any of the offices.

K and P must be assigned to adjacent offices.

L and P must be assigned to adjacent offices.

M and O must be assigned to adjacent offices.

M and N cannot be assigned to adjacent offices.

O is assigned to office 2 unless J chooses it; in that case, O will be assigned to office 3.

K is assigned to office 7 unless J chooses it; in that case, K will be assigned to office 5.

1. Which of the following is an assignment of executives to offices, beginning with office 1 and proceeding consecutively to office 8, that conforms to the restrictions above?

(A) J, O, M, R, L, P, K, N

(B) J, R, O, M, L, P, K, N

(C) M, O, N, K, P, L, R, J

(D) M, O, R, J, L, K, P, N

(E) N, J, O, M, K, P, L, R

2. If J chooses office 8, which of the following must be true?

(A) L is assigned to office 5.

(B) M is assigned to office 1.

(C) M is assigned to office 3.

(D) N is assigned to office 1.

(E) R is assigned to office 1.

3. P could be assigned to which of the following offices?

(A) 1 (B) 2 (C) 3 (D) 4 (E) 5

22. If N is assigned to office 5, which of the following can be true?

(A) L is assigned to office 3.

(B) M is assigned to office 4.

(C) O is assigned to office 3.

(D) P is assigned to office 1.

(E) R is assigned to office 6.

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