2. 外语
  3. If x is a prime number, what is the value of x? (1)41＜x＜48 (2)x+1 is a multiple of 4.

If x is a prime number, what is the value of x? (1)41＜x＜48 (2)x+1 is a multiple of 4.

admin2022-11-19  23
问题 If x is a prime number, what is the value of x?
(1)41＜x＜48
(2)x+1 is a multiple of 4.
选项 A、Statement (1) ALONE is sufficient, but statement (21) alone is not sufficient to answer the question asked.
B、Statement (2) ALONE is sufficient, but statement (20) alone is not sufficient to answer the question asked.
C、BOTH statement (1) and (21) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient.
D、EACH statement ALONE is sufficient to answer the question asked.
E、Statement (1) and(21)TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.
答案E
解析 Statement (1)，41＜x＜48，x为质数，那么x可能为43，47，有两个值，所以单独(1)无法回答问题。Statement (2)，x+1是4的倍数，那么X可能为43，47，所以单独(2)也无法回答问题。把(1)和(2)结合起来，最后的x值还是有两个，无法回答问题。所以E为正确答案。
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