GWD31MATH3.docx
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GWD31MATH3.docx
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GWD31MATH3
MathSection
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Q1:
Ifkisnegative,whichofthefollowingmustalsobenegative?
A.(-k)2
B.(-1)k
C.1-k
D.k+1
E.k-1
Answer:
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Q2:
OnSaturdaymorning,Malachiwillbeginacampingvacationandhewillreturnhomeattheendofthefirstdayonwhichitrains.Ifonthefirstthreedaysofthevacationtheprobabilityofrainoneachdayis0.2,whatistheprobabilitythatMalachiwillreturnhomeattheendofthedayonthefollowingMonday?
A.0.008
B.0.128
C.0.488
D.0.512
E.0.640
Answer:
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Q3:
Eachofthe45boxesonshelfJweighslessthaneachofthe44boxesonshelfK.Whatisthemedianweightofthe89boxesontheseshelves?
(1)TheheaviestboxonshelfJweighs15pounds.
(2)ThelightestboxonshelfKweighs20pounds.
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:
WhatisthetotalvalueofCompanyH’sstock?
(1)InvestorPowns¼ofthesharesofCompanyH’stotalstock.
(2)ThetotalvalueofInvestorQ’ssharesofCompanyH’sstockis$16,000.
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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Q5:
If(y+3)(y-1)–(y-2)(y-1)=r(y-1),whatisthevalueofy?
(1)r2=25
(2)r=5
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:
Ifxandkareintegersand(12x)(42x+1)=(2k)(32),whatisthevalueofk?
A.5
B.7
C.10
D.12
E.14
Answer:
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Q7:
Ifx<0,then(-xx)is
A.-x
B.-1
C.1
D.x
E.x
Answer:
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Q8:
Athinpieceofwire40meterslongiscutintotwopieces.Onepieceisusedtoformacirclewithradiusr,andtheotherisusedtoformasquare.Nowireisleftover.Whichofthefollowingrepresentsthetotalarea,insquaremeters,ofthecircularandthesquareregionsintermsofr?
A.r2
B.r2+10
C.r2+¼2r2
D.r2+(40-2r)2
E.r2+(10-½r)2
Answer:
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Q9:
Ifrisaconstantandan=rnforallpositiveintegersn,forhowmanyvaluesofnisan<100?
(1)a50=500
(2)a100+a105=2,050
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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Q10:
Ifthelengthofacertainrectangleis2greaterthanthewidthoftherectangle,whatistheperimeteroftherectangle?
(1)Thelengthofeachdiagonaloftherectangleis10.
(2)Theareaoftherectangularregionis48.
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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