【考研类试卷】工商管理硕士入学考试-Basic+Principles+of+Numbers及答案解析.doc

1、工商管理硕士入学考试-Basic+Principles+of+Numbers 及答案解析(总分：20.00，做题时间：90 分钟)一、B单项选择题/B(总题数：1，分数：20.00)The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficien

2、t for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counter- clockwise), you must indicate whether. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficien

3、t. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. EACH statement ALONE is sufficient. Statements (1) and (2) TOGETHER are NOT sufficient.（分数：20.00）(1).If , what is the value of r?(1) r2

4、625(2) （分数：5.00）A.B.C.D.(2).Is ab2? (1) a=2 (2) （分数：5.00）A.B.C.D.(3).Is fg? (1) fg+1 (2) （分数：5.00）A.B.C.D.(4).What is the value of （分数：5.00）A.B.C.D.工商管理硕士入学考试-Basic+Principles+of+Numbers 答案解析(总分：20.00，做题时间：90 分钟)一、B单项选择题/B(总题数：1，分数：20.00)The following data sufficiency problems consist of a question

5、 and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days i

6、n July or the meaning of counter- clockwise), you must indicate whether. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is

7、 sufficient. EACH statement ALONE is sufficient. Statements (1) and (2) TOGETHER are NOT sufficient.（分数：20.00）(1).If , what is the value of r?(1) r2=625(2) （分数：5.00）A.B.C.D. 解析：Statement (1) tells us that r=25 or -25, but when you look at the question stem, the radical sign for r is present, which o

8、nly allows for a positive root. So *. Therefore statement (1) is sufficient and we can eliminate B, C, and E. Statement (2) also gives us enough information to solve for r. If we rearrange the equation in the question stem, we can get t on one side, giving us *. So statement (2) is also sufficient,

9、and our answer is D.(2).Is ab2? (1) a=2 (2) （分数：5.00）A.B.C. D.解析：Statement (1) does not give us a definite yes or no answer, because b could be a lot of different numbers. So we can eliminate A and D. Statement (2) is also not sufficient, as a and b could equal 1 and 2, or 0.5 and 2, or 2 and 4, or

10、an infinite number of other variations in which a is smaller than b. So B is not correct. Putting them together, we know that a=2, and b must be larger than a to satisfy statement (2). ab then must be larger than 2 and the answer to the question is definitely yes. C is the correct answer.(3).Is fg?

11、1) fg+1 (2) （分数：5.00）A.B.C.D.解析：Statement (1) is not sufficient because f could be less than g or it could just be g+0.5. We can cross off A and D. Statement (2) is not sufficient because while the absolute value of f must be less than the absolute value of g, the actual value of g could still be n

12、egative while f could be positive. The statement doesnt give us enough information, so we can eliminate B. Putting the statements together doesnt really give us any more information, so the correct answer is E.(4).What is the value of （分数：5.00）A.B.C. D.解析：Because statement (1) just tells us that p c

13、ould be any negative number, it is not sufficient to answer the question. A and D can be eliminated. Statement (2) alone tells us that p could be either 3 or -3, which would give different values for * so it is also not sufficient and we can eliminate B. The statements together tell us that p must be -3, so we can solve for * and C is the correct answer.