GMAT真试题练习题库2docWord文档下载推荐.docx
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GMAT真试题练习题库2docWord文档下载推荐.docx
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Answer:
Q2:
Acertainrollercoasterhas3cars,andapassengerisequallylikelytorideinany1ofthe3carseachtimethatpassengerridestherollercoaster.Ifacertainpassengeristoridetherollercoaster3times,whatistheprobabilitythatthepassengerwillrideineachofthe3cars?
A.0
B.1/9
C.2/9
D.1/3
E.1
Q3:
Ifxandyarepositive,is4x>
3y?
(1)x>
y-x
(2)x/y<
1
Q4:
Ifnistheproductoftheintegersfrom1to20inclusive,whatisthegreatestintegerkforwhich2kisafactorofn?
A.10
B.12
C.15
D.18
E.20
Q5:
Isx>
k?
(1)2x•2k=4
(2)9x•3k=81
Q6:
Ifxandyarepositive,whatisthevalueofx–y?
(1)(x2–y2)/(x+y)=4
(2)x+y=7
Q7:
Acircularmatwithdiameter20inchesisplacedonasquaretabletop,eachofwhosesidesis24incheslong.Whichofthefollowingisclosesttothefractionofthetabletopcoveredbythemat?
A.5/12
B.2/5
C.1/2
D.3/4
E.5/6
Q8:
In1997therewere300femaleemployeesatCompanyC.IfthenumberoffemaleemployeesatCompanyCincreasedby60percentfrom1977to1987,bywhatpercentdidthenumberoffemaleemployeesatCompanyCincreasefrom1987to1997?
(1)From1977to1997thenumberoffemaleemployeesincreasedby200percentatCompanyC.
(2)In1977therewere100femaleemployeesatCompanyC.
Q9:
Agardenerisgoingtoplant2redrosebushesand2whiterosebushes.Ifthegardeneristoselecteachofthebushesatrandom,oneatatime,andplanttheminarow,whatistheprobabilitythatthe2rosebushesinthemiddleoftherowwillbetheredrosebushes?
A.1/12
B.1/6
C.1/5
E.1/2
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
Q11:
Inacorporation,50percentofthemaleemployeesand40percentofthefemaleemployeesareatleast35yearsold.If42percentofalltheemployeesareatleast35yearsold,whatfractionoftheemployeesinthecorporationarefemales?
A.3/5
B.2/3
C.3/4
D.4/5
Q12:
Ifnisanintegerand2<
n<
6,whatisthevalueofn?
(1)nisafactorof15.
(2)nisafactorof21.
Q13:
Ifxandyarepositive,is3x>
7y?
y+4
(2)-5x<
-14y
Q14:
If1050–74iswrittenasanintegerinbase10notation,whatisthesumofthedigitsinthatinteger?
A.424
B.433
C.440
D.449
E.467
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
Q16:
IfJ,S,andVarepointsonthenumberline,whatisthedistancebetweenSandV?
(1)ThedistancebetweenJandSis20.
(2)ThedistancebetweenJandVis25.
Q17:
InTownX,64percentofthepopulationareemployed,and48percentofthepopulationareemployedmales.WhatpercentoftheemployedpeopleinTownXarefemales?
A.16%
B.25%
C.32%
D.40%
E.52%
Q18:
Note:
Figurenotdrawntoscale.
Thefigureshowsasquarepatiosurroundedbyawalkwayofwidthxmeters.Iftheareaofthewalkwayis132squaremetersandthewidthofthepatiois5metersgreaterthanthewidthofthewalkway,whatistheareaofthepatio,insquaremeters?
A.56
B.64
C.68
D.81
E.100
Q19:
Atotalof$60,000wasinvestedforoneyear.Butofthisamountearnedsimpleannualinterestattherateofxpercentperyear,andtherestearnedsimpleannualinterestattherateofypercentperyear.Ifthetotalinterestearnedbythe$60,000forthatyearwas$4,080,whatisthevalueofx?
(1)x=(3/4)y
(2)Theratiooftheamountthatearnedinterestattherateofxpercentperyeartotheamountthatearnedinterestattherateofypercentperyearwas3to2.
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
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