2. 职称英语
  3. Now that you’ve gotten a little more confident, we’re going to give you the oppo

Now that you’ve gotten a little more confident, we’re going to give you the oppo

游客2025-02-27  24
问题 Now that you’ve gotten a little more confident, we’re going to give you the opportunity to practice "without the training wheels." When you want to check your work, you can turn to the solutions at the end. If you aren’t familiar with some of the mathematical concepts, make a note to pay particular attention to that chapter in this book; this practice set covers a wide range of topics tested on the GMAT.
   On all data sufficiency problems, the answer choices are the same (as you’ve learned). We’ve put them here for your reference.
   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. [br] Is x an integer?
   (1) x is evenly divisible by 1/2.
   (2) x is evenly divisible by 2.
选项
答案 B
解析 A reminder: The question stem starts with is, so this is a yes or no problem. The first step is to determine whether statement (1) is sufficient, which we can do by trying out some real numbers. If x is 2, which is evenly divisible by 1/2, then the answer would be yes. But if x were 1.5, which is also evenly divisible by 1/2, then the answer would be no. Since you can get either yes or no, statement (1) is not sufficient and you should cross off A and D.
   Now let’s move on to statement (2). There are no non-integer numbers that are divisible by 2, so yes is the only possibility. Statement (2) is sufficient, so we can eliminate C and E, and the correct answer is B.
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