GMAT考试易错题（2019/2/15）

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. A、hotdog vendor sold $45 worth of hotdogs at lunchtime Tuesday.Each hotdog cost $1.50. What percentage of his day’s stock of hotdogs did the vendor sell at lunchtime (1) The vendor started the day with 120 hotdogs. (2) The vendor sold twice as many hotdogs at dinnertime as he sold at lunchtime.

【单选题】： A     B     C     D

第2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. What is the number of male employees at the factory (1) If the factory were to hire 150 more employees and 2/3 of them were female, the ratio of male to female employees would be 8:3. (2) The factory has at least twice as many male employees as female employees, and it employs at least 150 females.

【单选题】： A     B     C     D

第3题：一种水果，晒之前水分占99%，晒了以后水分占98%，原来重100，问晒了以后重量

【分析题】：

第4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. DidAlberto pay more than N dollars for his new stereo, excluding the sales tax (1) The priceAlberto paid for the stereo was 1.05N, including the sales tax. (2)Alberto paid $35 in sales tax on the purchase of his new stereo.

【单选题】： A     B     C     D

第5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. An employee at a company was given the task of making a large number of copies. He spent the first 45 minutes making copies at a constant rate on copierA, but copierA、broke down before the task was completeD、He then spent the next 30 minutes finishing the task on copierB, which also produced copies at a constant rate. How many total minutes would the task have taken had copierA、not broken down (1)CopierA、produced twice as many copies in its first 5 minutes of operation as copierB、produced in its first 15 minutes. (2)CopierB、produces 10 copies per minute.

【单选题】： A     B     C     D