Data Sufficiency

试题详情

题目:

Of the numbers q, r, s, and t, which is greatest?
  1. The average (arithmetic mean) of q and r is s.
  2. The sum of q and r is t.

选项:

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.

答案:

E

提问:

老师这个题是不是考虑了负数,如果都是正数我觉得应该选C?
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