[外语类试卷]GRE(QUANTITATIVE)模拟试卷12及答案与解析.doc

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1、GRE( QUANTITATIVE)模拟试卷 12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 If a small soda can contains 300 ml of soda, how many liters of soda are in 25 cans? ( A) 0.75 ( B) 7.5 ( C) 75 ( D) 750 ( E) 7,500 16 A given street median is planted with trees. Of the 30 trees in the median, 3 are lindens, one-fi

4、fth are oaks, 12 are cedars, and the remainder are maples. What is the ratio of lindens to maples? ( A) 1 to 10 ( B) 1 to 4 ( C) 1 to 3 ( D) 1 to 2 ( E) 3 to 1 17 If 2x+3y=18 and y=3, then4x= ( A) 3 ( B) 9 ( C) 10 ( D) 18 ( E) 36 18 A rancher wishes to enclose a field that measures 12 feet by 27 fee

5、t. He purchases 76 feet of fencing material that must be affixed to posts at the corners, with no two posts being more than 6 feet apart. What is the least number of fence posts he will require to fence in this field? ( A) 10 ( B) 12 ( C) 13 ( D) 14 ( E) 18 19 |14|-2|=? 20 If x is an integer, then t

6、he units digit of x squared cannot be ( A) 0 ( B) 1 ( C) 2 ( D) 5 ( E) 6 21 Which is both the mean and the median of 5 consecutive integers the least of which is x? ( A) x+4 ( B) x+3 ( C) x+2 ( D) ( E) 22 23 If/b-c=5 and a+c=35, then a+b= ( A) 30 ( B) 35 ( C) 40 ( D) 42 ( E) 50 24 What is the remain

7、der when 73 is divided by 9? ( A) 0 ( B) 1 ( C) 2 ( D) 3 ( E) 5 25 How many positive whole numbers less than or equal to 50 are NOT equal to squares of whole numbers? ( A) 9 ( B) 15 ( C) 43 ( D) 44 ( E) 45 25 26 Of people 20 years of age or older, approximately how many more males than females were

8、unem-ployed in 1997? ( A) 150,000 ( B) 300,000 ( C) 750,000 ( D) 1,200,00 ( E) 2,600,000 27 In 1997, of the unemployed males 20 years of age or older, what percent were unemployed because they had lost their jobs? ( A) 35% ( B) 50% ( C) 60% ( D) 75% ( E) 90% 27 Life expectancy among adults 45 and 65

9、 years of age by family income, sex, and race: United States, average annual 1979-89 28 A sequence of numbers begins 1, 1, 1, 2, 2, 3 and then repeats this pattern forever. What is the sum of the 135th, 136th, and 137th numbers in the sequence? ( A) 3 ( B) 4 ( C) 5 ( D) 6 ( E) 7 29 In the figure abo

10、ve, the diameter of the circle is 20 and the area of the shaded region is 80. What is the value of a + b + c + d? ( A) 144 ( B) 216 ( C) 240 ( D) 270 ( E) 288 29 Refer to the following graphs for Questions. 30 What was the approximate average yearly increase in the cost of wool from 1996 to 2000, in

11、clusive? ( A) $1,250 ( B) $2,000 ( C) $3,300 ( D) $5,0O0 ( E) $10,000 31 Approximately what percent of textile imports in 1991 came from cotton? ( A) 18% ( B) 25% ( C) 28% ( D) 35% ( E) 40% 32 If x+3y=3 and (x+y)2=4, which of the following is a possible value of x? ( A) -8 ( B) -5 ( C) ( D) 3/2 ( E)

12、 5 GRE( QUANTITATIVE)模拟试卷 12答案与解析 1 【正确答案】 A 2 【正确答案】 B 3 【正确答案】 A 4 【正确答案】 A 5 【正确答案】 D 6 【正确答案】 D 7 【正确答案】 C 8 【正确答案】 C 9 【正确答案】 D 10 【正确答案】 C 11 【正确答案】 B 12 【正确答案】 C 13 【正确答案】 A 14 【正确答案】 B 15 【正确答案】 B 16 【正确答案】 C 17 【正确答案】 D 18 【正确答案】 D 19 【正确 答案】 28 20 【正确答案】 C 21 【正确答案】 C 22 【正确答案】 C 23 【正确答案】 C 24 【正确答案】 B 25 【正确答案】 C 26 【正确答案】 B 27 【正确答案】 C 28 【正确答案】 C 29 【正确答案】 E 30 【正确答案】 B 31 【正确答案】 D 32 【正确答案】 D

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