If p, q, x, y, and z are different positive integers, which of the five integers is the median?

(1) p + x < q

(2) y < z


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

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

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

EACH statement ALONE is sufficient.

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

考题讲解

题目分析:

(1)    只给出了p + x < q,无法确定y、z的大小,也无法确定中位数。

(2)    只给出了y<z,无法确定其余值得大小,无法确定中位数。

结合条件1和条件2,不能确定五个数的大小关系,例如,p=1,x=2,q=4,y=5,z=6,则中位数为q=4;又如,p=1,x=2,q=8,y=3,z=4,则中位数为y=3。

因此,本题答案为(E),两个条件结合起来也不能解题,必须提供新数据。

 

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