gmat考试gwd数学部分

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1、MathSection------------------------------------------------------------------------------------------------------------Q1:Afamily-sizeboxofcerealcontainsmorecerealandcostsmorethantheregular-sizeboxofcereal.Whatisthecostperounceofthefamily-sizeboxofcereal?(1

2、)Thefamily-sizeboxofcerealcontains10ouncesmorethantheregular-sizeboxofcereal.(2)Thefamily-sizeboxofcerealcosts$5.40.A.Statement(1)ALONEissufficient,butstatement(2)aloneisnotsufficient.B.Statement(2)ALONEissufficient,butstatement(1)aloneisnotsufficient.C.BOT

3、HstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.D.EACHstatementALONEissufficient.E.Statements(1)and(2)TOGETHERareNOTsufficient.Answer:-----------------------------------------------------------------------------------------------------

4、-------Q2:Acertainrollercoasterhas3cars,andapassengerisequallylikelytorideinany1ofthe3carseachtimethatpassengerridestherollercoaster.Ifacertainpassengeristoridetherollercoaster3times,whatistheprobabilitythatthepassengerwillrideineachofthe3cars?01/92/91/31An

5、swer:------------------------------------------------------------------------------------------------------------Q3:Ifxandyarepositive,is4x>3y?(1)x>y-x(2)x/y<1A.Statement(1)ALONEissufficient,butstatement(2)aloneisnotsufficient.B.Statement(2)ALONEissufficien

6、t,butstatement(1)aloneisnotsufficient.C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.D.EACHstatementALONEissufficient.E.Statements(1)and(2)TOGETHERareNOTsufficient.Answer:----------------------------------------------------------

7、--------------------------------------------------Q4:Ifnistheproductoftheintegersfrom1to20inclusive,whatisthegreatestintegerkforwhich2kisafactorofn?1012151820Answer:--------------------------------------------------------------------------------------------

8、----------------Q5:Isx>k?(1)2x•2k=4(2)9x•3k=81A.Statement(1)ALONEissufficient,butstatement(2)aloneisnotsufficient.B.Statement(2)ALONEissufficient,butstatement(1)aloneisnotsufficient.C.BOTHstatementsTOG