GMAT真题8Word下载.docx

GMAT真题8Word下载.docx

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Ifacertainmachineproducesboltsataconstantrate,howmanysecondswillittakethemachinetoproduce300bolts?

（1）Ittakesthemachine56secondstoproduce40bolts.

（2）Ittakesthemachine1.4secondstoproduce1bolt.

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.

Q3:

Ifk,m,andpareintegers,isk–m–podd?

（1）kandmareevenandpisodd.

（2）k,m,andpareconsecutiveintegers.

Q4:

Ifxistheproductofthepositiveintegersfrom1to8,inclusive,andifi,k,m,andparepositiveintegerssuchthatx=2i3k5m7p,theni+k+m+p=

A.4

B.7

C.8

D.11

E.12

Q5:

Ifacodewordisdefinedtobeasequenceofdifferentletterschosenfromthe10lettersA,B,C,D,E,F,G,H,I,andJ,whatistheratioofthenumberof5-lettercodewordstothenumberof4-lettercodewords?

A.5to4

B.3to2

C.2to1

D.5to1

E.6to1

Q6:

Iftwocopyingmachinesworksimultaneouslyattheirrespectiveconstantrates,howmanycopiesdotheyproducein5minutes?

（1）Oneofthemachinesproducescopiesattheconstantrateof250copiesperminute.

（2）Oneofthemachinesproducescopiesattwicetheconstantrateoftheothermachine.

Q7:

Isxy>

x2y2?

（1）14x2=3

（2）y2=1

Q8:

R

P

Q

Forthecubeshownabove,whatisthedegreemeasureof

PQR?

A.30

B.45

C.60

D.75

E.90

Q9:

Ifanintegernistobechosenatrandomfromtheintegers1to96,inclusive,whatistheprobabilitythatn（n+1）（n+2）willbedivisibleby8?

A.

B.

C.

D.

E.

Q10:

Atotalof$60,000wasinvestedforoneyear.Partofthisamountearnedsimpleannualinterestattherateofxpercentperyear,andtherestearnedsimpleannualinterestattherateofypercentperyear.Ifthetotalinterestearnedbythe$60,000forthatyearwas$4,080,whatisthevalueofx?

（1）x=

（2）Theratiooftheamountthatearnedinterestattherateofxpercentperyeartotheamountthatearnedinterestattherateofypercentperyearwas3to2.

Q11:

Ifnandkarepositiveintegers,isndivisibleby6?

（1）n=k（k+1）（k-1）

（2）k–1isamultipleof3.

Q12:

Whatwasthecostofacertaintelephonecall?

（1）Thecalllasted8minutes.

（2）Thecostofthefirstminuteofthecallwas$0.32,whichwastwicethecostofeachminuteofthecallafterthefirst.

Q13:

CompanySproducestwokindsofstereos:

basicanddeluxe.OfthestereosproducedbyCompanySlastmonth,

werebasicandtherestweredeluxe.Ifittakes

asmanyhourstoproduceadeluxestereoasitdoestoproduceabasicstereo,thenthenumberofhoursittooktoproducethedeluxestereoslastmonthwaswhatfractionofthetotalnumberofhoursittooktoproduceallthestereos?

Q14:

99,9992-12=

A.1010-2

B.（105–2）2

C.104（105–2）

D.105（104–2）

E.105（105–2）

Q15:

Isx2+y2>

6?

（1）（x+y）2>

6

（2）xy=2

Q16:

Whatistheprobabilitythatastudentrandomlyselectedfromaclassof60studentswillbeamalewhohasbrownhair?

（1）One-halfofthestudentshavebrownhair.

（2）One-thirdofthestudentsaremales.

Q17:

Thenumberofdefectsinthefirstfivecarstocomethroughanewproductionlineare9,7,10,4,and6,respectively.Ifthesixthcarthroughtheproductionlinehaseither3,7,or12defects,forwhichofthesesvaluesdoesthemeannumberofdefectspercarforthefirstsixcarsequalthemedian?

I.3

II.7

III.12

A.Ionly

B.IIonly

C.IIIonly

D.IandIIIonly

E.I,II,andIII

Answer:

Q18:

Whichofthefollowingisequalto（2k）（5k−1）?

A.2（10k−1）

B.5（10k−1）

C.10k

D.2（10k）

E.102k−1

Q19:

If

=25,thenx3–x2=

A.512

B.520

C.6（55）

D.54（52+1）

E.58（54−1）

Q20:

yº

xº

zº

Intheparallelogramshown,whatisthevalueofx?

（1）y=2x

（2）x+z=120

D.EACHstatemen