雷哥网GMAT-【OG20-P289-412题】If k is an integer such that 56 < k < 66, what is _OG16

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【OG20-P289-412题】

If k is an integer such that 56 < k < 66, what is the value of k ?

(1) If k were divided by 2, the remainder would be 1.

(2) If k + 1 were divided by 3, the remainder would be 0.

A

Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
分析A选项
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B

Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
分析B选项
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C

BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
分析C选项
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D

EACH statement ALONE is sufficient.
分析D选项
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E

Statements (1) and (2) TOGETHER are NOT sufficient.
分析E选项
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当前版本由蒋维鹏更新于2020-11-20 22:16:48 感谢由蒋维鹏对此题目的解答所做出的贡献。

条件1：k=57, 59, 61, 63, 65
条件2：k+1=57, 60, 63, 66（题干的范围是k小于66，不是k+1）K+1=66，k=65符合条件范围
条件2中的k=56, 59, 62, 65
解不唯一，两个解，59和65

提交

冲他丫的

，，，我

0 0 回复 2021-10-15 23:56:49
贾思敏

绝了，我做这道题竟然错了，可能是做题的精神状态一般，没休息好有毒。错题分析一下：这道题就是列举法 1、把符合条件一和题干的取值范围的数列举出来，发现有很多数都符合，答案不唯一，不充分。 2、再看条件二，同理，结合题干的取值范围和条件二的要求列举数字出来，发现也是可以取很多数的，不充分。 3、最后，结合条件一和条件二，就是取条件一和条件二的交集吧，发现有两个数可以取得到，答案不唯一，不充分。

0 0 回复 2021-09-28 22:48:28
bella

(1) If k were divided by 2, the remainder would be 1 --> k is an odd number, thus it could be 57, 59, 61, 63, or 65. Not sufficient. (2) If k + 1 were divided by 3, the remainder would be 0 --> k is 1 less than a multiple of 3, thus it could be 59, 62, or 65. Not sufficient. (1)+(2) k could still take more than one value: 59 or 65. Not sufficient. Answer: E.

0 0 回复 2015-06-26 16:28:20