GRE-练习十七及答案解析.doc

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1、GRE-练习十七及答案解析(总分：72.00，做题时间：90 分钟)（分数：2.00）(1).This question refers to the graph aboveIn the question all references to gasoline prices and taxes refer to average prices，including tax，and average taxes，in United States dollars，On June 1，1989If the tax per gallon of gasoline in Canada were doubled an

2、d the increase in tax added to the price per gallon of gasoline，what percent of the resulting price per gallon would the tax then be?A. 36% B. 50% C. 64%D. 75% E. 90% （分数：1.00）A.B.C.D.E.(2).The average acreage per farm was approximately 140 in 19 10 and 220 in1950The ration of the total farmland acr

3、eage in 1910 to the total in 1950 was most nearly（分数：1.00）A.B.C.D.E.AVERAGE COSTS TO OPERATE THREE TYPESOF CARS OVERA FOURYEAR PERIOD(based Oil 15，000 miles per year)Standard CarCOMpact CaRSubcompact CarPurchase Price $8，000 $5，600 $4，800Interest 2，11 2 1，479 1，267Insurance 2.000 2，000 2，000Maintena

4、nce/Tires1，120 1，080 920Fuel*/Oil 6，429 4，500 3，000Subtotal 19，661 14，659 11，987Resale Value 2，000 1，400 -1，200Total Cost toOperate the Car $17，661 $13，259 $10，787AVERAGE ANNUALSAVINGS THROUGH CARPOOL ING TO WORKRATHER THAN DRIVING ALONEType of CarAnnual CostAnnual Savings Per PersonDriving toWork A

5、lone2-personCar Pool3-DersonCar Pool4-DersonCar Pool5-personCar PoolStandard $2，491 $1，146 $1，544 $1，719 $1，843Compact 1，870 860 1，159 1，290 1，384Subcompact 1，521 700 943 1，050 1，126AVERAGE DAILY COST OF VAN-POOL ING TOWORKRound-Trip MilesVan Pool Cost per Passenger20 $1.4525 1. 5430 1.6340 1.8150 1

6、.9960 2.17*Based on$1.50 per gallon for fuel（分数：2.00）(1).If the cost of oil is negligible，what is the mileage(average miles per gallon of fuel)of a compact car?A. 13B. 18C. 20D. 25E. 28（分数：1.00）A.B.C.D.E.(2).If 2 people，who would otherwise be driving alone in subcompact cars，drive in a2-person car p

7、ool using subcompact cars，what is the total of their average annual costs of transportation to work?A. $821B. $1，400C. $1，521D. $1，642E. $2，342（分数：1.00）A.B.C.D.E.（分数：2.00）(1).If at the end of 1973 Company X sold 30，000shares of common stock for 35 times Company Xs earnings for the year，what was the

8、price of a share of common stock at that time?A. $7.00 B. $10.00C. $17.50 D. $35.00E. $70.00 （分数：1.00）A.B.C.D.E.(2).If Company X considered a good year to be any year in which earnings were at least 20percent of sales，how many of the years shown were good years?A. None B. One C. TWOD. Three E. Four（

9、分数：1.00）A.B.C.D.E.（分数：3.00）(1).What fraction of the total number of votes cast did the two winners receive?（分数：1.00）A.B.C.D.E.(2).What percent of the sample voted for at least one of the two winners?A. 11% B. 20% C. 55%D. 61% E. 90%（分数：1.00）A.B.C.D.E.(3).How many votes were cast in district X?A. 18

10、B. 90 C. 200D. 360 E. 400（分数：1.00）A.B.C.D.E.（分数：2.00）(1).In the 19781979 school year，if 12percent of the amount of contributions allocated to scholarships and operational expenses was allocated to heating costs，approximately how much was NOT allocated to heating costs?A. $2，000 B. $25，000C. $176，000

11、 D. $205，000E. $250000（分数：1.00）A.B.C.D.E.(2).Approximately what was the total amount of contributions to College R from the19781979 school year through the 19801981 school year，inclusive?A. $967，000 B. $1，000，000C. $9，000，000 D. $9，667，000E. $10，000，000（分数：1.00）A.B.C.D.E.（分数：2.00）(1).For which of th

12、e following categories was the percent of the average annual income(before taxes) spent on food at home the least?A. Selfemployed workersB. Professionals and managersC. Clerical and sales workersD. Craft workers and machine operatorsE. Laborers and service workers（分数：1.00）A.B.C.D.E.(2).Approximately

13、 what percent of the total average annual income(before taxes)of retirees was spent on meats，poultry，and seafood(consumed at home.?A. 7%B. 10%C. 20%D. 23%E. 31% （分数：1.00）A.B.C.D.E.1.If the circle graphs below(drawn to scale)represent total consumer complaints for1980，which graph shows a shaded secto

14、r that corresponds to Flight problems and Refund problems combined?（分数：1.00）A.B.C.D.E.2.In 1969 what was the ratio of dollars of domestic operating revenues to miles flown?（分数：1.00）A.B.C.D.E.3.（分数：1.00）A.B.C.D.E.4. （分数：1.00）A.B.C.D.E.（分数：3.00）(1).On Saturday of last week，Market X was open for 15 hou

15、rs and exactly four cashiers workedWhat was the greatest possible amount that the market could have paid in cashierswages for that day?A. $132.00 B. $157.50C. $161.25 D. $163.00E. $165.00（分数：1.00）A.B.C.D.E.(2).If Market X is open 96 hours per week，for how many hours last week were two cashiers worki

16、ng at the same time?A. 49 B. 48 C. 36D. 24 E. 12（分数：1.00）A.B.C.D.E.(3).If Cashier Ss hourly wage were to increase by 10 percent and Ss weekly hours were to decrease by 10 percent from last weeks total hours，what would be the change，if any，in Ss total weekly wage?A. An increase of $1.3B. An increase

17、of $0.55C. No changeD. A decrease of $0.55E. A decrease of $1.37（分数：1.00）A.B.C.D.E.（分数：2.00）(1).For the year shown in which the total number of new cars sold was less than the number of new domestic cars sold the previous year，approximately how many fewer new domestic cars were sold than in the prev

18、ious year?A. 500，000B. 1，000000C. 1，600，000D. 2，200，000E. 3，000，000（分数：1.00）A.B.C.D.E.(2).Approximately what percent of the new domestic cars sold retail in the United States in 1983 were manufactured by Company Q?A. 10% B. 12% C. 15%D. 17% E. 23%（分数：1.00）A.B.C.D.E.（分数：3.00）(1).The median score for

19、the class isA. 76B. 77C. 78D. 79E. 80 （分数：1.00）A.B.C.D.E.(2).If 5 points were added to each score，which of the following would NOT be affected?A. The highest scoreB. The mean for all scoresC. The median for the seniors scoresD. The mode for the iuniors scoresE. The standard deviation for all scores（

20、分数：1.00）A.B.C.D.E.(3).If the mean score for the iuniors were known，which of the following could be calculated from the information given? The range of the scores for the seniors The median score for the juniors The mean score for the seniorsA. NoneB. onlyC. onlyD. and E. and （分数：1.00）A.B.C.D.E.（分数：2

21、.00）(1).In 1970，if 5 percent of the water use was for domestic purposesapproximately what was the daily average number of gallons of water used per capita for domestic purposes?A. 105B. 50C. 20D. 10E.5（分数：1.00）A.B.C.D.E.(2).If in 1900 the water use in Country K was the same as that in Country X，but

22、increased at the constant rate of 3 billion gallons every year，then the two countries would again have had the same water use in approximately what year?A. 1910 B. 1920 C. 1930D. 1940 E. 1950（分数：1.00）A.B.C.D.E.（分数：2.00）(1).For state and local government employees，approximately what was the differenc

23、e between the number of females employed as professionals and the number of females employed in service/maintenance occupations?A. 75，000B. 185，000C. 765，000D. 1，070，000E. 1，840，000（分数：1.00）A.B.C.D.E.(2).Which of the following statements about state and local government employees can be inferred fro

24、m the data? Fewer than （分数：1.00）A.B.C.D.E.5. （分数：1.00）A.B.C.D.E.6. （分数：1.00）A.B.C.D.E.（分数：3.00）(1).How many of the inventoried textbooks were purchased by the two schools combined during the years 1974，1975and 19767A. 495B. 940C. 1，020D. 1，435E. 2，800（分数：1.00）A.B.C.D.E.(2).If School X purchased 300

25、textbooks in1971 and all of these textbooks either were counted in the inventory or had been discarded before the inventory， what percent of these textbooks had been discarded?A. 10% B. 20% C. 50%D. 80% E. 100%（分数：1.00）A.B.C.D.E.(3).Which of the following statements can be inferred from the graph? S

26、chool X has a smaller enrollment than School YIf the age of a book is the number of years since purchase，then the average(arithmetic mean)age of a book in the School Y inventory is less than that of a book in the School X inventory According to the inventory，School X and School Y purchased the same

27、number of textbooks in 1976A. NoneB. onlyC. onlyD. and E. and （分数：1.00）A.B.C.D.E.7. （分数：1.00）A.B.C.D.E.8.（分数：1.00）A.B.C.D.E.9.（分数：1.00）A.B.C.D.E.10. （分数：1.00）A.B.C.D.E.11.UNITED STATES POPULATION(official census 18901980)YearPopulation(in millions)10-yearIncrease(in millions)YearPopulation(in millio

28、ns)10-yearIncrease(in millions)189062.9 1940131.7 8.9190076.0 13.1 1950150.7 19.01910l92.0 16.0 1960179.3 28.61920105.7 13.7 1970103.2 23.91930122.8 17.1 1980223.9 20.7If the percent increase in population from1910 to 1920 had been approximately thesame as the percent increase from 1900 to1910，the 1

29、0-year increase，in millions，from 1910 to 1 920。 would havebeen approximatelyA. 3B. 6C. 16D. 19E. 29（分数：1.00）A.B.C.D.E.（分数：2.00）(1).In 1974 the dollar value of imports was approximately what percent of the dollar value of exports?A. 4%B. 17%C. 27%D. 79%E. 367%（分数：1.00）A.B.C.D.E.(2).If it were discove

30、red that the import dollar amount shown for 1978 was incorrect and should have been $5.3 billion instead，then the average(arithmetic mean)import dollar amount per year for the 17 years would be how much less?A. $100 million B. $53 millionC. $47 million D. $17 millionE. $7million（分数：1.00）A.B.C.D.E.12

31、. （分数：1.00）A.B.C.D.E.（分数：2.00）(1).In 1985 approximately what percent of all medical expenditures was paid for physician services?A. 20%B. 25%C. 30%D. 35%E. 40%（分数：1.00）A.B.C.D.E.(2).What was the approximate percent increase in total medical* expenditures from 1975to 1985?A. 44% B. 77% C. 85%D. 88% E

32、. 135%（分数：1.00）A.B.C.D.E.（分数：2.00）(1).By approximately how many million did the mallard population decrease from 1970to 1988A. 0.6 B. 2.8 C. 3.6D. 4.3 E. 7.0（分数：1.00）A.B.C.D.E.(2).In 1984 the population of pintails was approximately what fraction of the mallard population?（分数：1.00）A.B.C.D.E.（分数：3.00

33、）(1).For which of the following years was there an increase over the previous year in the number of existing homes sold，but a decrease in the number of new homes sold?A. 1972 B. 1973 C. 1974D. 1977 E. 1979（分数：1.00）A.B.C.D.E.(2).In the year shown in which the median price of existing homes sold was c

34、losest to the median price of new homes sold，approximately how many million existing homes were sold?A. 1.2 B. 1.6 C. 2.0D. 2.4 E. 2.8（分数：1.00）A.B.C.D.E.(3).In 1977 the number of existing homes sold was approximately how many times the number of new homes sold?A. 3B. 3.5C. 4.5D. 5.5E. 6（分数：1.00）A.B.

35、C.D.E.13. （分数：1.00）A.B.C.D.E.（分数：2.00）(1).For the year shown，other than 1987，in which the percent return on shareholdersequity for Manufacturer X was most nearly equal to that for 1987，what was the percent return for all United States manufacturers?（分数：1.00）A.B.C.D.E.(2).Which of the following state

36、ments can be supported by the data in the graph?The percent return on shareholders equity for all United States manu-facturers decreased from 1984 to 1988by less than 10 percentage points A return on shareholderequity of more than 7 percent was achieved by each United States manufacturerin 1988 The

37、shareholdersequity for Manu-facturer X was greater in 1987 than in1988A. only B. onlyC. and only D. and onlyE. ，and （分数：1.00）A.B.C.D.E.ENROLLMENT FACULTY SIZE，FACULTY SALARY，AND TUITION AT COLLEGE R FOR SELECTED YEARSNumber of Students Enrolled1，4901，600 1，790Number of Faculty members166160Ratio of

38、students to Faculty（分数：3.00）(1).If the increase in the number of students enrolled from 1950 to 1960 was half the increase from 1960 to 1970，what was the student enrollment in 19507A. 745B. 1，340C. 1，380D. 1，435E. 1，545（分数：1.00）A.B.C.D.E.(2).The increase in tuition per student from1970 to 1980 was a

39、pproximately how many times as great as the increase from 1960to 1970?（分数：1.00）A.B.C.D.E.(3).If the total amount of faculty salaries in1980 was paid from tuition income，approximately how much of each studentstuition was used to pay faculty salaries?A. $160 B. $1，100C. $1，250 D. $2，600E. $3，700（分数：1.

40、00）A.B.C.D.E.（分数：2.00）(1).The land at the farms highest elevation is used for which of the followingA. Hay and corn B. OrchardC. Pasture D. WoodlandE. Wheat（分数：1.00）A.B.C.D.E.(2).Approximately how many acres are used to grow hay?A. 40 B. 45 C. 50D. 60 E. 75（分数：1.00）A.B.C.D.E.HOUSEHOLD DISCRETIONARY

41、INCOME BY HEADOF HOUSEHOLDS AGE-GROUPHead of HouseholdsAge-Group(in years)Number of Households(in thousands)withDiscretionary IncomePercent of Householdswith discretionaryIncomeAverage*HouseholdAverage*Discretionary Incomeper Household15 to 2425 to 2930 to 3435 to 3940 to 4445 to 4950 to 5455 to 596

42、0 to 6465 to 6970 and older9722，6463，41 93，31 92，6052，2992，0082，2521，8481，5232，94618.7%27.431.533.030.533.431.835.028.825.022.8$30，12436，61840，06743，58547，89149，96849,07944，90644，26238，96832，344$7，7909.13010.91912.40513.99914.44813.55014. 58414.35612.92111.015All age Groups 25，869 28.9% $4l，940 $12，

43、332*Based on households with discretionary income（分数：2.00）(1).For which agegroup was the percent of households with discretionary income most nearly equal to ?A. 15 to 24 B. 25 to 29C. 40 to 44 D. 60 to 64E. 70 and older （分数：1.00）A.B.C.D.E.(2).Which of the following statements can be inferred from t

44、he data? Each household in the agegroup 15 to24 had at least $7，500 in discretionary income Of the age groups listed，the agegroup55 to 59 had the greatest percent of households with discretionary income For the agegroup 50 to 54，average discretionary income per household was less than onefourth of t

45、he average household incomeA. onlyB. onlyC. and onlyD. and onlyE. ，and （分数：1.00）A.B.C.D.E.14. （分数：1.00）A.B.C.D.E.（分数：2.00）(1).In 1980 the total population of females from 50 to 59 years old，inclusive，was closest toA. 1，200，000B. 1，400，000C. 12，000，000D. 14，000，000E. 20，000，000（分数：1.00）A.B.C.D.E.(2).

46、The“combined age”of a group of people is the sum of the ages of all of the people in the groupWhich of the following group shad the greatest combined age in 19867A. 20-year-old malesB. 20-year-old femalesC. 60-year-old malesD. 60-year-old femalesE. 80-year-old females（分数：1.00）A.B.C.D.E.15. （分数：1.00）

47、A.B.C.D.E.16. （分数：1.00）A.B.C.D.E.17.The electricity used by the water heater was measured separately and its cost per kilowatthour was onehalf the cost per kilowatthour of the rest of the electricity usedThe cost of the electricity used by the water heater was most nearly what fraction of the total

48、cost of all the electricity used?（分数：1.00）A.B.C.D.E.（分数：2.00）(1).The funds distributed in 1992 for youth developments were approximatelyA. $38，000B. $170，000C. $380，000D. $450，000E. $1，700，000（分数：1.00）A.B.C.D.E.(2).The increase in the amount of money distributed for family support from 1992to 1993 w

49、as closest to which of the following?A. $0B. $24，000C. $40，000D. $60，000E. $94，000（分数：1.00）A.B.C.D.E.18. （分数：1.00）A.B.C.D.E.POPULATION DATA FOR TEN SELECTED STATES IN 1980 AND 1987Population(in thousands)State1980 1987Percent Change inPopulation，19801987Population PerSquare Mile in1987ABCDEFGHIJ23，66817，55814，2299，74611，86411，42710，7989，2627，3655，88227.66317，82516，78912，02311，93611，58210，7849，2007，6726，41316.91.518.023.40.61.4-0.1-0.74.29.0177372642222662082631621，027131（分数：2.0