2025年GRE数学冲刺押题

2025年GRE数学冲刺押题考试时间：______分钟总分：______分姓名：______Section11.If3x+4y=10andy=2,whatisthevalueof2x+5y?2.Whichofthefollowingisequalto30%of450?(A)0.3×450(B)(30/100)×450(C)(10/100)×(45/10)(D)(3/10)×45(E)450×0.033.Theaverage(arithmeticmean)offiveconsecutiveevenintegersis32.Whatisthelargestoftheseintegers?4.Ifa=5^3andb=2^4,then5ab-2b^2=5.Inacertainclass,theratioofthenumberofboystothenumberofgirlsis3:5.Ifthereare15moregirlsthanboys,howmanystudentsareintheclassintotal?6.Arectanglehasalengthof12inchesandawidthof6inches.Ifthelengthisincreasedby50%,andthewidthisdecreasedby20%,whatistheareaofthenewrectangle,insquareinches?7.If|x|<3andy=-2,whichofthefollowingstatementsmustbetrue?(A)x+y<-1(B)x-y<1(C)x+y>1(D)x-y>5(E)x^2+y^2<138.Anumberischosenatrandomfromtheset{1,2,3,4,5,6}.Whatistheprobabilitythatthenumberiseven?9.Iftheperimeterofasquareis36,whatisthelengthofitsdiagonal?10.Atraintravelsataconstantspeed.Ifitcovers120milesin3hours,howfarwillittravelin5hours?11.Solveforx:4(x-1)+2=3x+7.12.Abagcontainsonlyredmarblesandbluemarbles.Iftheratioofredmarblestobluemarblesis3:2,whatpercentofthemarblesareblue?13.Theslopeofalinepassingthroughthepoints(2,3)and(5,y)is2.Whatisthevalueofy?14.Iff(x)=x^2-4x+3,whatisthevalueoff(3)?15.Amerchantboughtanitemfor$60andsolditforaprofitof25%.Whatwasthesellingpriceoftheitem?16.Whichofthefollowingisafactorofx^2-9?(A)x-3(B)x+3(C)x-9(D)x+9(E)3x17.If0<a<b,whichofthefollowingmustbetrue?(I)a^2<b^2(II)1/a>1/b(III)a-b<018.Acirclehasanareaof25πsquareunits.Whatisthelengthoftheradiusofthecircle?19.Iftheaverageof4numbersis15,andtheaverageof3othernumbersis10,whatistheaverageofall7numbers?20.Astoreishavinga30%offsale.Ashirtthatoriginallycosts$40ispurchasedunderthissale.Howmuchispaidfortheshirt?Section221.AcertainworkcanbecompletedbyMachineAin5hoursandbyMachineBin7hours.IfMachineAandMachineBworktogether,howmanyhourswillittakethemtocompletethework?22.Ifxandyarepositiveintegerssuchthatx+y=10andx-y=2,whatisthevalueofxy?23.Thecoordinatesofthreeverticesofarectangleare(0,0),(0,5),and(4,0).Whatarethecoordinatesofthefourthvertex?24.Aboxcontains10redballs,8blueballs,and6greenballs.Ifaballisselectedatrandomfromthebox,whatistheprobabilitythattheballisnotblue?25.IfthesumofthefirstnpositiveintegersisgivenbyS=n(n+1)/2,whatisthevalueofSwhenn=20?26.AcartravelsfromCityXtoCityYatanaveragespeedof60milesperhourandreturnsfromCityYtoCityXatanaveragespeedof40milesperhour.Whatistheaveragespeedfortheentireroundtrip,inmilesperhour?27.Solvetheinequality:3x-7>5.28.Ifthesidesofatriangleare5cm,12cm,and13cm,whatistheareaofthetriangle,insquarecentimeters?29.Asequenceisdefinedbytheformulaa_n=a_{n-1}+5,wherea_1=10.Whatisthevalueofa_5?30.Acylinderhasaradiusof3cmandaheightof5cm.Whatisthevolumeofthecylinder,incubiccentimeters?Useπ≈3.14.31.Astoreoffersadiscountof$20offtheoriginalpriceofabook.Ifthediscountedpriceis$30,whatwastheoriginalpriceofthebook?32.Iff(x)=2x+1andg(x)=x^2,whatisthevalueoff(g(2))?33.Themedianofasetof7consecutiveintegersis6.Whatisthelargestintegerintheset?34.Aregularhexagonhasaperimeterof42.Whatisthelengthofonesideofthehexagon?35.If5^x=125,whatisthevalueofx?36.Atrianglehasanglesmeasuring45degrees,45degrees,and90degrees.Ifthehypotenuseis10unitslong,whatisthelengthofoneofthelegs?37.Aprojectrequires3workers.IfWorkerAcancompletetheprojectin6days,WorkerBin8days,andWorkerCin12days,howlongwillittakeallthreeworkersworkingtogethertocompletetheproject?38.If|x-5|=3,whatarethepossiblevaluesofx?39.Theaveragescoreonatestwas75.Iftherewere30studentswhotookthetest,whatwasthetotalsumofallthescores?40.Arectanglehasaperimeterof30inchesandanareaof50squareinches.Whatisthelengthoftherectangle?试卷答案1.102.B3.384.2505.606.43.27.B8.1/39.910.20011.-112.40%13.714.015.$7516