GRE試題（七）

　　Time –30 minutes

　　25 Questions

　　Questions 1-8

　　A bakery makes nine kinds of cookies. Of these nine,three kinds are fruit cookies—G, H, and J; three kindsare nut cookies—K, L, and O; and three kinds are plaincookies—X, Y, and Z. Each day of the week, Mondaythrough Sunday, the bakery will feature a special priceon exactly three different kinds of cookies. The threefeatured cookies will be selected according to the

　　following rules:

　　Each day at least one fruit cookie must be featured,and each day at least one nut cookie must befeatured.On any day on which cookie J is featured, cookie Lcannot be featured.On any day on which cookie k is featured, cookie Ymust also be featured.No kind of cookie can be featured more than threetimes in a week.

　　1.Which of the following lists three cookies that can befeatured together?

　　(A) G, L, Z

　　(B) H, K, X

　　(C) J, L, Y

　　(D) J, O, Z

　　(E) K, O, Y

　　2. On a day on which both cookie L and cookie Z arefeatured, which of the following can be the third kindof cookie featured?

　　(A) H

　　(B) J

　　(C) O

　　(D) X

　　(E) Y

　　3.A partial schedule of featured cookies is shown below.Monday Tuesday Wednesday Thursday FridayL H O G ZAccording to this schedule, which of the following is a day onwhich cookie X CANNOT be one of the featured cookies?

　　(A) Monday

　　(B) Tuesday

　　(C) Wednesday

　　(D) Thursday

　　(E) Friday

　　4.If cookie J is featured on Friday, Saturday, andSunday; if cookie K is featured on Monday, Tuesday,and Wednesday, and if cookie G is featured only onThursday, then cookie L can be featured on

　　(A) Monday only

　　(B) Thursday only

　　(C) Monday, Tuesday, and Wednesday only

　　(D) Friday, Saturday, and Sunday only

　　(E) any two of the first four days of the week

　　5. If each kind of nut cookie is featured three times inone week, what is the maximum number or days onwhich plain cookies can be featured during that week?

　　(A) Three

　　(B) Four

　　(C) Five

　　(D) Six

　　(E) Seven

　　6.If cookie H and cookie Y are each featured onMonday, Tuesday, and Wednesday, and if cookie Gand cookie X are each featured on Thursday, Fridayand Saturday, then the cookies featured on Sundaymust include both

　　(A) J and K

　　(B) J and L

　　(C) J and O

　　(D) K and L

　　(E) K and Z

　　7.If exactly seven kinds of cookies are featured duringone week, which of the following must be true aboutthat week?

　　(A) X is the only kind of plain cookie that is featured

　　(B) Y is the only kind of plain cookie that is featured

　　(C) Z is the only kind of plain cookie that is featured.

　　(D) On at least one day, both cookie G and cookie Zare featured.

　　(E) On at least one day, both cookie J and cookie Xare featured.

　　8.If cookie X is featured exactly twice and cookie Z isfeatured exactly three times in one week, which ofthe following must be true?

　　(A)Cookie G is featured exactly three times duringthe week.

　　(B)Cookie J is featured at most twice during theweek.

　　(C)Cookie K is featured at most twice during theweek.

　　(D)Cookie L is featured at most twice during theweek.

　　(E) Cookie Y is featured exactly twice during theweek.

　　9. In recent years, there has been a dramatic decline inthe population of the shrike, a predatory bird thatinhabits flat land, such as farms and pastures. Someornithologists hypothesize that this decline is due tothe introduction of new, more effective pesticides tocontrol the insect species on which shrikes prey.The answer to which of the following questions isNOT relevant to evaluating the ornithologists’hypothesis?

　　(A) Was there a decline in the shrike populationbefore the new pesticides were first used?

　　(B) Have shrike populations declined significantlyin those habitats where the new pesticides havenot been used?

　　(C) Have the new pesticides more significantlyreduced the population of insect species onwhich shrikes prey than did the pesticides previouslyused?

　　(D) Are insects that have consumed the new pesti-cides more toxic to the shrikes that eat thoseinsects than were insects that consumed theless effective pesticides?

　　(E) Are the new pesticides considered by mostpeople to be less harmful to the environmentthan the old pesticides were considered to be?

　　10. Census data for Prenland show that unmarriedPrenlandic men in their thirties outnumber unmarriedPrenlandic women in that age group by about ten toOne. Most of these men do wish to marry. Clearly,however, unless many of them marry women who

　　are not Prenlandic, all but a minori

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　　GRE試題（七）

　　ty will remain

　　unmarried.

　　The argument makes which of the following assump-tions?

　　(A) Emigration from Preland is more commonamong women than among men.

　　(B) A greater proportion of Prelandic womenin their thirties than of Prenlandic men of thesame age would prefer to remain unmarried.

　　(C) It is unlikely that many of these unmarriedPrenlandic men will marry women more thana few years older than themselves.

　　(D) Prenland has a high rate of divorce.

　　(E) Most of the unmarried Prenlandic men areunwilling to marry women who are notPrenlandic.

　　11.Certain extremely harmful bacteria found only insewage are difficult to detect directly. Testing forE. coli, an easily detected and less harmful type ofbacteria, in ocean water would be a reliable way ofdetermining whether or not these more harmful bateria are present, since ocean water contains E. Colionly if the water is contaminated with sewage thatcontains the harmful bacteria.

　　Which of the following, if true, most seriouslyweakens the argument?

　　(A) There are many different strains of the E. colibacteria, and only some of these strains areharmful.

　　(B) Some types of bacteria found in sewage areneither disease-causing nor difficult to detectdirectly.

　　(C) Some of the types of bacteria found in sewagealong with E. coli are not harmful to peopleunless the bacteria are ingested in large quantities.

　　(D) E. coli dies out much more quickly than some ofthe more harmful bacteria found in sewage andthen can no longer be easily detected.

　　(E) Some of the types of bacteria found in sewagealong with E. coli reproduce at a slower ratethan E. coli.

　　Questions 12-17A bank has exactly four cashier windows, arranged in arow and numbered consecutively 1through 4 from one

　　end of the row to the other. The bank has exactly sixcashiers: two supervisors (Joan and Karim); and fourtrainees (Lorraine, Mark, Nora, and patrick). Throughouta particular peak-hour period, the stationing of cashiers atwindows is restricted as follows:There must be exactly one cashier at each window.The cashier at window 2 must be a supervisor.Lorraine must be at a window but cannot be at window 3.If Mark is at one of the windows, Joan must be at awindow immediately adjacent to it.The cashiers at the windows must include either Noraor Patrick, but they cannot include both Nora andPatrick.

　　12.Which of the following lists the cashiers who can bestationed at windows 1 through 4 during this period?

　　(A) Joan Karim Mark Lorraine

　　(B) Joan Karim Nora Lorraine

　　(C) Karim Nora Joan Lorraine

　　(D) Mark Joan Lorraine Patrick

　　(E) Patrick Joan Nora Lorraine

　　13.Which of the following must be true about thestationing of the cashiers during this period?

　　(A) Joan is at window 1 or at window 2.

　　(B) Karim is at window 2 or at window 4.

　　(C) Lorraine is at window 1 or window 4.

　　(D) Nora is at window 1 or at window 3.

　　(E) Patrick is at window 3 or at window 4.sarily in that order, are stationed at immediatelyadjacent windows, which of the following must bestationed at window 4 during this period?

　　(A) Joan

　　(B) Karim

　　(C) Lorraine

　　(D) Mark

　　(E) Patrick

　　15.If during this period Lorraine and Mark, not neces-sarily in that order, are stationed at immediatelyadjacent windows, which of the following can bestationed at window 1 during this period?

　　(A) Joan

　　(B) Karim

　　(C) Lorraine

　　(D) Mark

　　(E) Nora

　　16.If during this period Lorrained and Nora, not neces-sarily in that order, are stationed at immediatelyadjacent windows, which of the following must betrue during this period?

　　(A) Joan is stationed at window 1.

　　(B) Joan is stationed at window 2.

　　(C) Karim is stationed at window 2

　　(D) Nora is stationed at windows 3.

　　(E) Patrick is stationed at window 1.

　　17.If during this period Mark is stationed at a window,which of the following CANNOT be stationed at awindow during this period?

　　(A) Joan

　　(B) Karim

　　(C) Lorraine

　　(D) Nora

　　(E) Patrick

　　Questions 18-22Seven photographs—three landscapes: F, H, and J; and four still lifes:Q, R, T and W—will appear on the first seven pages—numberedconsecutively from page 1 through page 7—of an exhibit catalog.Each page will contain exactly one of the photographs. The orderingof the photographs in the catalog is governed by the followingconditions.J and W, not necessarily in that order, must appear on consecu-tively numbered pages.The three landscapes cannot appear on-consecutively numberedpages.

　　Neither page 2 not page 4