TTGWD3-32

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Q32:

If S is a set of ten consecutive integers, is the integer 5 in S?

(1)     The integer –3 is in S.

(2)     The integer 4 is in S.

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: E

为什么不是C呢？如果-3和4再立面的话，又是10各连续的整数，为什么5不能被算出在里面呢？

如果是（-5，4）的话，也是10个连续整数，包含了-3和4。没有5

画数轴