GMAT真试题练习题库2doc.docx
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GMAT真试题练习题库2doc.docx
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GMAT真试题练习题库2doc
MathSection
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Q1:
Afamily-sizeboxofcerealcontainsmorecerealandcostsmorethantheregular-sizeboxofcereal.Whatisthecostperounceofthefamily-sizeboxofcereal?
(1)Thefamily-sizeboxofcerealcontains10ouncesmorethantheregular-sizeboxofcereal.
(2)Thefamily-sizeboxofcerealcosts$5.40.
A.Statement
(1)ALONEissufficient,butstatement
(2)aloneisnotsufficient.
B.Statement
(2)ALONEissufficient,butstatement
(1)aloneisnotsufficient.
C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.
D.EACHstatementALONEissufficient.
E.Statements
(1)and
(2)TOGETHERareNOTsufficient.
Answer:
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Q2:
Acertainrollercoasterhas3cars,andapassengerisequallylikelytorideinany1ofthe3carseachtimethatpassengerridestherollercoaster.Ifacertainpassengeristoridetherollercoaster3times,whatistheprobabilitythatthepassengerwillrideineachofthe3cars?
A.0
B.1/9
C.2/9
D.1/3
E.1
Answer:
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Q3:
Ifxandyarepositive,is4x>3y?
(1)x>y-x
(2)x/y<1
A.Statement
(1)ALONEissufficient,butstatement
(2)aloneisnotsufficient.
B.Statement
(2)ALONEissufficient,butstatement
(1)aloneisnotsufficient.
C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.
D.EACHstatementALONEissufficient.
E.Statements
(1)and
(2)TOGETHERareNOTsufficient.
Answer:
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Q4:
Ifnistheproductoftheintegersfrom1to20inclusive,whatisthegreatestintegerkforwhich2kisafactorofn?
A.10
B.12
C.15
D.18
E.20
Answer:
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Q5:
Isx>k?
(1)2x•2k=4
(2)9x•3k=81
A.Statement
(1)ALONEissufficient,butstatement
(2)aloneisnotsufficient.
B.Statement
(2)ALONEissufficient,butstatement
(1)aloneisnotsufficient.
C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.
D.EACHstatementALONEissufficient.
E.Statements
(1)and
(2)TOGETHERareNOTsufficient.
Answer:
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Q6:
Ifxandyarepositive,whatisthevalueofx–y?
(1)(x2–y2)/(x+y)=4
(2)x+y=7
A.Statement
(1)ALONEissufficient,butstatement
(2)aloneisnotsufficient.
B.Statement
(2)ALONEissufficient,butstatement
(1)aloneisnotsufficient.
C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.
D.EACHstatementALONEissufficient.
E.Statements
(1)and
(2)TOGETHERareNOTsufficient.
Answer:
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Q7:
Acircularmatwithdiameter20inchesisplacedonasquaretabletop,eachofwhosesidesis24incheslong.Whichofthefollowingisclosesttothefractionofthetabletopcoveredbythemat?
A.5/12
B.2/5
C.1/2
D.3/4
E.5/6
Answer:
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Q8:
In1997therewere300femaleemployeesatCompanyC.IfthenumberoffemaleemployeesatCompanyCincreasedby60percentfrom1977to1987,bywhatpercentdidthenumberoffemaleemployeesatCompanyCincreasefrom1987to1997?
(1)From1977to1997thenumberoffemaleemployeesincreasedby200percentatCompanyC.
(2)In1977therewere100femaleemployeesatCompanyC.
A.Statement
(1)ALONEissufficient,butstatement
(2)aloneisnotsufficient.
B.Statement
(2)ALONEissufficient,butstatement
(1)aloneisnotsufficient.
C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.
D.EACHstatementALONEissufficient.
E.Statements
(1)and
(2)TOGETHERareNOTsufficient.
Answer:
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Q9:
Agardenerisgoingtoplant2redrosebushesand2whiterosebushes.Ifthegardeneristoselecteachofthebushesatrandom,oneatatime,andplanttheminarow,whatistheprobabilitythatthe2rosebushesinthemiddleoftherowwillbetheredrosebushes?
A.1/12
B.1/6
C.1/5
D.1/3
E.1/2
Answer:
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Q10:
Asetofnumbershasthepropertythatforanynumbertintheset,t+2isintheset.If–1isintheset,whichofthefollowingmustalsobeintheset?
I.-3
II.1
III.5
A.Ionly
B.IIonly
C.IandIIonly
D.IIandIIIonly
E.I,II,andIII
Answer:
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Q11:
Inacorporation,50percentofthemaleemployeesand40percentofthefemaleemployeesareatleast35yearsold.If42percentofalltheemployeesareatleast35yearsold,whatfractionoftheemployeesinthecorporationarefemales?
A.3/5
B.2/3
C.3/4
D.4/5
E.5/6
Answer:
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Q12:
Ifnisanintegerand2 (1)nisafactorof15. (2)nisafactorof21. A.Statement (1)ALONEissufficient,butstatement (2)aloneisnotsufficient. B.Statement (2)ALONEissufficient,butstatement (1)aloneisnotsufficient. C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient. D.EACHstatementALONEissufficient. E.Statements (1)and (2)TOGETHERareNOTsufficient. Answer: ------------------------------------------------------------------------------------------------------------ Q13: Ifxandyarepositive,is3x>7y? (1)x>y+4 (2)-5x<-14y A.Statement (1)ALONEissufficient,butstatement (2)aloneisnotsufficient. B.Statement (2)ALONEissufficient,butstatement (1)aloneisnotsufficient. C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient. D.EACHstatementALONEissufficient. E.Statements (1)and (2)TOGETHERareNOTsufficient. Answer: ------------------------------------------------------------------------------------------------------------ Q14: If1050–74iswrittenasanintegerinbase10notation,whatisthesumofthedigitsinthatinteger? A.424 B.433 C.440 D.449 E.467 Answer: ------------------------------------------------------------------------------------------------------------ Q15: Ann,Carol,andJudypaidatotalof$45fortheirdinneratarestaurant.IfAnnpaid2/5ofthetotalamount,Carolpaid$17,andJudypaidtherest,whatfractionofthetotalamountdidJudypay? A.2/9 B.14/45 C.1/3 D.2/5 E.7/15 Answer: ------------------------------------------------------------------------------------------------------------ Q16: IfJ,S,andVarepointsonthenumberline,whatisthedistancebetweenSandV? (1)ThedistancebetweenJandSis20. (2)ThedistancebetweenJandVis25. A.Statement (1)ALONEissufficient,butstatement (2)aloneisnotsufficient. B.Statement (2)ALONEissufficient,butstatement (1)aloneisnotsufficient. C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient. D.EACHstatementALONEissufficient. E.Statements (1)and (2)TOGETHERareNOTsufficient. Answer: ------------------------------------------------------------------------------------------------------------ Q17: InTownX,64percentofthepopulationareemployed,and48percentofthepopulationareemployedmales.WhatpercentoftheemployedpeopleinTownXarefemales? A.16% B.25% C.32% D.40% E.52% Answer: ------------------------------------------------------------------------------------------------------------ Q18: Note: Figurenotdrawntoscale. Thefigureshowsasquarepatiosurroundedbyawalkwayofwidthxmeters.Iftheareaofthewalkwayis132squaremetersandthewidthofthepatiois5metersgreaterthanthewidthofthewalkway,whatistheareaofthepatio,insquaremeters? A.56 B.64 C.68 D.81 E.100 Answer: ------------------------------------------------------------------------------------------------------------ Q19: Atotalof$60,000wasinvestedforoneyear.Butofthisamountearnedsimpleannualinterestattherateofxpercentperyear,andtherestearnedsimpleannualinterestattherateofypercentperyear.Ifthetotalinterestearnedbythe$60,000forthatyearwas$4,080,whatisthevalueofx? (1)x=(3/4)y (2)Theratiooftheamountthatearnedinterestattherateofxpercentperyeartotheamountthatearnedinterestattherateofypercentperyearwas3to2. A.Statement (1)ALONEissufficient,butstatement (2)aloneisnotsufficient. B.Statement (2)ALONEissufficient,butstatement (1)aloneisnotsufficient. C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient. D.EACHstatementALONEissufficient. E.Statements (1)and (2)TOGETHERareNOTsufficient. Answer: ------------------------------------------------------------------------------------------------------------ Q20: Ifx>0,then1/[√(2x)+√x]= A.1/√(3x) B.1/[2√(2x)] C.1/(x√2) D.(√2-1)/√x E.(1+√2)/√x Answer: -------------
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