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2024-01-14  54
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 a3＞20?
   (1) a4＞80
   (2) a5＞200
选项
答案 B
解析 Here’s another question that is looking for a yes or no answer. Statement (1) allows for both positive and negative values of a, so it is not sufficient, and we can cross off A and D.
   Statement (2), on the other hand, tells us that a is positive and must be a value of at least 3. If a＞3, then the answer to the question stem must always be yes. Therefore, statement (2) is sufficient, and our answer is B.
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