[外语类试卷]GRE（QUANTITATIVE）模拟试卷18及答案与解析.doc

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1、GRE（ QUANTITATIVE）模拟试卷 18及答案与解析 0 Directions: In the following type of question, two quantities appear, one in Column A and one in Column B. You must compare them. The correct answer to the question is A if the quantity in Column A is greater B if the quantity in Column B is greater C if the two qua

2、ntities are equal D if it is impossible to determine which quantity is greater Notes: Sometimes information about one or both of the quantities is centered above the two columns. If the same symbol appears in both columns, it represents the same thing each time. Directions: In the following question

3、s, choose the best answer from the five choices listed. 4 6 9 11 15 A ball has been rolling at the constant rate x cm/min. How many centimeters has it roiled in the last y seconds? 16 A membership list of 720 people shows that 36 have first and last names that begin with the same letter. If a person

4、 is selected at random, what is the probability that his or her first and last name does NOT begin with the same letter? （ A） 0.05 （ B） 0.25 （ C） 0.50 （ D） 0.75 （ E） 0.95 17 A receptionist typed 8 memos, each either 1 or 2 pages long. If the receptionist typed 12 pages in all, how many of the memos

5、had 2 pages? （ A） 1 （ B） 2 （ C） 3 （ D） 4 （ E） 5 18 If the assets of a stock drop by $4.03 billion to $74.02 billion, what was the percent decrease in the stocks assets? （ A） 0.4 （ B） 4.0 （ C） 5.0 （ D） 25.0 （ E） 40.0 19 Which of the following equals the reciprocal of , where does not equal 0? 20 The

6、integer n is a multiple of both 5 and Which of the following is (are) true? I. n is odd. II. n=III. n is a multiple of 15. （ A） III only （ B） I and II only （ C） I and III only （ D） II and III only （ E） I, II, and III 21 (2100)+(51)+(61,000)+(910)= （ A） 2,569 （ B） 2,956 （ C） 6,259 （ D） 6,295 （ E） 9,5

7、26 22 Allie lives 3 km west of Billys house. Charlie lives 4 km north of Allies house and 3 km west of Dannys house. What is the distance from Allies house to Dannys house? （ A） 4 km （ B） 5 km （ C） 8 km （ D） 10 km （ E） 12 km 23 （ A） 0.2586 （ B） 2.586 （ C） 25.86 （ D） 258.6 （ E） 2,586 23 Total enrollm

8、ent in higher education institutions, by control and type of institution: Fall 1972-95 24 In 1995 the number of students enrolled in public institutions of higher education was approximately how many times the number of students enrolled in private institutions of higher education? （ A） 2 （ B） 2.5 （

9、 C） 3 （ D） 3.5 （ E） 4 25 If the total enrollment in institutions of higher education in 1972 was 5,000,000. approximately how many students were enrolled in private 4-year institutions in 1995? （ A） 1,000,000 （ B） 1,100,000 （ C） 1,250,000 （ D） 1,500,000 （ E） 1,650,000 25 Percentage of students who r

10、eported spending time on homework and watching television 26 In 1996, what percent of fourth-graders did between 1 and 2 hours of homework per day? （ A） 5% （ B） 15% （ C） 25% （ D） 40% （ E） 55% 27 If in 1984 there were 2,000,000 eleventh-graders, and if between 1984 and 1996 the number of eleventh-gra

11、ders increased by 10%, then approximately how many more eleventh-graders watched 1 hour or less of television in 1996 than in 1984? （ A） 25,000 （ B） 50,000 （ C） 75,000 （ D） 100,000 (g) 150,000 GRE（ QUANTITATIVE）模拟试卷 18答案与解析 1 【正确答案】 D 2 【正确答案】 D 3 【正确答案】 D 4 【正确答案】 C 5 【正确答案】 D 6 【正确答案】 B 7 【正确答案】 C 8 【正确答案】 A 9 【正确答案】 A 10 【正确答案】 C 11 【正确答案】 C 12 【正确答案】 D 13 【正确答案】 C 14 【正确答案】 C 15 【正确答案】 A 16 【正确答案】 E 17 【正确答案】 D 18 【正确答案】 C 19 【正确答案】 E 20 【正确答案】 A 21 【正确答案】 D 22 【正确答案】 B 23 【正确答案】 A 24 【正确答案】 D 25 【正确答案】 E 26 【正确答案】 B 27 【正确答 案】 E