| GMAT考试易错题（2019/5/21） |
| 第1题：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 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 in July or the meaning of counterclockwise), you must indicate whether 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 statementALONE、is sufficient. D、EACH statementALONE、is sufficient. Ｅ. Statements (1) and (2) TOGETHER are NOT sufficient. If x+y=36, what is the value of xy (1) y-x=14 (2) y=2x+3 |
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| 第2题： A、particular rocket car can travel for sustained periods at a maximum speed of 240 miles per hour. How many minutes would it take this rocket car to travel 86 miles A、2.8 B、18 1/2 C、21 1/2 D、22 E、24 |
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| 第3题：The following two questions are based on the following passage: A、study by a group of dentists has concluded that regular use of a certain brand of mouthwash is as effective as flossing in preventing gum disease. The mouthwash company has released a television ad suggesting that people who do not like flossing can now rely solely on mouthwash and brushing to maintain good dental health.A、leading manufacturer of dental floss brought a lawsuit against the mouthwash company demanding that the advertisement be discontinued on the grounds that it is misleading. Which of the following, if true, provides the strongest support for the dental floss company’s claim that the advertisement is misleading A、The dental floss manufacturer is concerned that it will lose market share in the dental health market because the advertisement encourages people to switch from dental floss to mouthwash. B、The dental floss company claims in its own advertisements that brushing and flossing after every meal is the most effective way to maintain good dental health. C、Although mouthwash is an effective deterrent to gum disease, it is less effective than dental floss at removing plaque and preventing cavities between teeth. D、Per usage, mouthwash is three times more expensive than dental floss, if the recommended amounts of both products are useD、 E、The dentists who conducted the study on the effectiveness of mouthwash in preventing gum disease obtained their funding for the study from a company that manufactures mouthwash. |
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| 第4题：Charlie’sChainsawCompany has reason to believe that one of its models of saw is defective. A、recall of all of the saws would cost more than $5 million, and would probably result in a loss in market share over the next quarter because of bad publicity. Still, a recall is the right economic decision. Which of the following, if true, most supports the conclusion above A、Defective chainsaws can seriously injure or even kill the people who use them. B、Charlie’s chief rival has recalled two of its products within the past year. C、Product recalls often result in a perception by customers that a given product is permanently defective, even after the defect has been remedieD、 D、The stocks of publicly traded companies that announce product recalls often drop upon the announcement, but they generally return to the pre-announcement level within 12 months. E、Three years ago a rival company went out of business because of large punitive damages awarded to a plaintiff who had been injured by a defective chainsaw. |
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| 第5题：If x, y, and z are positive integers, and 4x=5y=6z, then the least possible value of x+y+z is A、15 B、28 C、37 D、42 E、6O |
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