习题.docx

习题.docx

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习题

1.Annswims6lapsevery5minutes.Atthatrate,howmanylapsdoessheswimin1hour?

2.Whatistheperimeterofarectanglewithsidelengthsof8and3?

3.Thebaseanglesofanisoscelestriangleare:

4.Howmanypointsarenecessarytodefinealine?

5.Twocarsstartfromthesameplacetwohoursapart.Thefirstcartravelsat10milesperhourandthesecondtravelsat15milesperhour.Howmanyhoursafterthesecondcarleavesdoesittakeforthesecondcartocatchup?

6.Whatinterestrateisnecessarytoget$1000ininterestover2yearsona$10000investment?

7.Thesumof14consecutiveintegersis217.Whatisthesixthnumberintheseries?

8.Paulneedstobeatameetingin20minutes.Ifhisofficeis15milesaway,howfastdoesheneedtodrivetogetthereontime,inmilesperhour?

5.If5+9+__=6+8+1,then__=

 A.1      B.5      C.6      D.8      E.9

6.If3/4ofanumberis48,then1/4ofthesamenumberis

 A.12    B.16    C.24    D.144  E.192

7.Whatistheperimeterofanequilateraltriangleifonesideofthetrianglehasthesamelengthasthesideofasquarewithanareaof25?

 A.30    B.20    C.15    D.10    E.5

8.Itcostsndollarstomanufacture1dozenstuffedanimals.Atthesamerate,howmanydollarswillitcosttomanufacture30stuffedanimals?

A.30n    B.360/n    C.2n/5    D.2/5n    E.5n/2

9.21/4%=

A.0.0025    B.0.0225    C.0.225    D.2.025    E.2.25

10.WhichofthefollowingisNOTequaltoawholenumber?

A.8+4    B.1/8x4    C.8/4    D.8x1/4    E.8/1/8

11.8x3x7x2isequaltotheproductof24and

A.56    B.21    C.16    D.14    E.6

12.Thenumberofpeoplenowemployedbyacertaincompanyis240,whichis3/5thenumberemployedfiveyearsago.Howmanymoreemployeesdidithavethenthanithasnow?

A.160    B.360    C.480    D.720    E.960

13.Arecipeforsaladdressingcallsforaratioof3tablespoonsofoliveoilfor1tablespoonofvinegar,butMelanieused3tablespoonsofvinegarand1ofoliveoil.Howmanymoretablespoonsmustsheaddinordertohavethecorrectproportion?

A.2      B.6      C.8      D.9      E.10

14.Inthefigure,ifx/2=30,theny=

A.15     B.30     C.45     D.60     E.120

15.IfKristinaseesymovies,ElliottseesfivetimesasmanymoviesasKristina,andCherylsees2fewermoviesthanKristina,howmanymoviesdidthethreechildrenseealtogether?

A.3y+3    B.5y-2    C.7y-2    D.8y-2    E.8y

1Whatistheperimeterofarectanglewithsidelengthsof8and3?

　　a.6b.11c,16d.22e.25

　　2Thebaseanglesofanisoscelestriangleare:

　　Perpendicular

　　Congruent

　　Complimentary

　　Supplementary

　　parallel

　　3Howmanypointsarenecessarytodefinealine?

　　a.Oneb.Twoc.Threed.Foure.Infinite

　　4Twocarsstartfromthesameplacetwohoursapart.Thefirstcartravelsat10milesperhourandthesecondtravelsat15milesperhour.Howmanyhoursafterthesecondcarleavesdoesittakeforthesecondcartocatchup?

　　a.1b.2c.3d.4e.5

　　5Whatinterestrateisnecessarytoget$1000ininterestover2yearsona$10000investment?

　　a.4%b.5%c.6%d.7%e.8%

　　6Thesumof14consecutiveintegersis217.Whatisthesixthnumberintheseries?

　　a.13b.14c.15d.16e.17

　　7Paulneedstobeatameetingin20minutes.Ifhisofficeis15milesaway,howfastdoesheneedtodrivetogetthereontime,inmilesperhour?

　　a.15b.20c.30d.40e.45

　　8Thebaseanglesofanisoscelestriangleare:

　　Perpendicular

　　Congruent

　　Complimentary

　　Supplementary

　　Parallel

　　9IfA$B=A*B-（A+B）,whatis3$（2$1）?

　　A.-5B.-3C.0D.1E.4

　　10Whatistheaverage（arithmeticmean）of4x+5,7x-6,and-8x+2?

　　A.x+1B.x+1/3

　　C.3x+1D.3x+1/3

　　E.3x+31/3

　　11Inaclassroomof35students,14ourmale.Whatpercentoftheclassroomismale?

　　A.14%B.20%C.30%D.40%E.50%

　　12Iftheareaofatriangleis24anditsbaseis6,whatisthelengthofthealtitudetothatbase?

　　A.3B.6C.8D.10E.unknown

　　13IfJeffandJimmyhavelessthan22dollarsbetweenthem,andJeffhas8dollars,whichofthefollowingcouldbethenumberofdollarsthatJimmyhas?

　　Ⅰ12

　　Ⅱ14

　　Ⅲ16

　　A.Ionly

　　B.IIIonly

　　C.I&III.

　　D.I&II

　　E.NeitherI,II,norIIIiscorrect.

　　14Stephaniedroveatanaveragerateof50milesperhourfortwohoursandthenincreasedheraveragerateby50%forthenext3hours.Heraveragerateofspeedforthe5hourswastmilesperhour.Whatisthevalueoft?

　　A.55mph

　　B.60mph

　　C.65mph

　　D.70mph

　　E.75mph

　　15If1alpha=2betasand1beta=3gammas,howmanyalphasareequalto36gammas?

　　A.6B.12C.36D.72E.108

　　16AtJoesSteakhousethehourlywageforachefis20%greaterthanthatofadishwasher,andthehourlywageofadishwasherishalfasmuchasthehourlywageofamanager.Ifamanagerswageis$8.50perhour,howmuchlessthanamanagerdoesachefearneachhour?

　　A.$5.95B.$4.25C.$5.10D.$3.25E.$3.40

　　17Afloristbuysrosesat$0.50apieceandsellsthemfor$1.00apiece.Iftherearenootherexpenses,howmanyrosesmustbesoldinordertomakeaprofitof$300?

　　A.100B.150C.200D.300E.600

　　18Acertainpumpcandrainafull375-gallontankin15minutes.Atthisrate,howmanymoreminuteswouldittaketodrainafull600-gallontank?

　　A.9B.15C.18D.24E.25

　　19Lenny'saveragescoreafter3testsis88.Whatscoreonthe4thtestwouldbringLenny'saverageuptoexactly90?

　　A.92B.93C.94D.95E.96

　　20Ifanintegerisdivisibleby6andby9,thentheintegermustbedivisiblebywhichofthefollowing?

　　A.12B.18C.24D.36E.54

　　21Acertainmachinecanmake3widgetsevery2seconds.Atthisrate,howmanywidgetswillbemadein1minute?

　　A.90B.110C.150D.180E.220

　　22Whatistheaverageofthefirst50positiveintegers?

　　A.25B.25.5C.26D.26.5E.27

　　23Ifabisnegative,whichofthefollowingCANNOTbenegative?

　　A.b-aB.a-bC.a2bD.ab2E.a2b2

　　24Inacertainsetofnumbers,theratioofintegerstononintegersis1:

4.Whatpercentofthenumbersinthesetareintegers?

　　A.20%B.25%C.40%D.75%E.80%

　　25Whatisthesmallestpositivenumberthatleavesaremainderof2whenthenumberisdividedby3,4,or5?

　　A.42B.82C.22D.62E.122

　　26Whichisgreater?

ColumnAColumnB3-5+6-8-4+7-2

　　A.thequantityinColumnBisgreater

　　B.therelationshipcannotbedeterminedfromtheinformationgiven

　　C.thequantityinColumnAisgreater

　　D.thetwoquantitiesareequal

　　27Ifadieistossedtwicetheprobabilityofgettinga3onbothtossesis:

　　A.1/4B.1/36C.1/12D.1/6E.1/25

　　28Aninstrumentstoregivesa10%discounttoallstudentsofftheoriginalcostofaninstrument.Duringabacktoschoolsaleanadditional15%istakenoffthediscountedprice.Julie,astudentatthelocalhighschool,purchasesaflutefor$306.Howmuchdiditoriginallycost?

　　A.$325B.$375C.$400D.$408E.$425

　　29Ify（x-1）=zthenx=

　　A.y-z

　　B.z/y+1

　　C.y（z-1）

　　D.z（y-1）

　　E.1-zy

　　30WhichofthefollowingvaluesisNOTequalto34（58+9）?

　　A.34x67

　　B.58（34+9）

　　C.34x58+34x9

　　D.1,972+306

　　E.（9+58）34

　　31Twoanglesofatrianglemeasure15°and85°.Whatisthemeasureforthethirdangle?

　　A.50°B.55°C.60°D.80°E.90°

　　32If5ouncesisequalto140grams,then2poundsofgroundmeatisequaltohowmanygrams?

　　A.863B.878C.896D.915E.932

　　33Whichyeardidthemostchildrentakeswimminglessons?

　　A.1990

　　B.1991

　　C.1992

　　D.1994

　　E.1995

　　34Betweenwhichyeardidthelargestdecreaseinchildrentakingswimminglessonsoccur?

　　A.1990-1991

　　B.1991-1992

　　C.1992-1993

　　D.1993-1994

　　E.1994-1995

　　35Whatwastheaveragenumberofchildrentakingswimlessonsfrom1990to1995?

　　A.250B.308C.385D.450E.1,850

　　36Whichofthefollowingisequalto5.93x10-2?

　　A.0.0593

　　B.0.00593

　　C.593

　　D.5930

　　E.59300

37OnaMap,1inchrepresents20miles.Thedistancebetween2townsis61/5inches.Howmanymilesareactuallybetweenthetwotowns?

　　A.65miles

　　B.84miles

　　C.124miles

　　D.138miles

　　E.145miles

　　38Howmanycubedpiecesoffudgethatare3inchesonanedgecanbepackedintoaChristmastinthatis9inchesdeepby12incheswideby8incheshighwiththelidstillbeingabletobeclosed?

　　A.18B.24C.32D.36E.43

　　39Sarahistwiceasoldasheryoungestbrother.Ifthedifferencebetweentheiragesis15years.Howoldisheryoungestbrother?

　　A.10B.15C.20D.25E.30

　　40Whichofthefollowingfractionsisequalto5/6?

　　A.20/30

　　B.15/24

　　C.25/30

　　D.40/54

　　E.2/7

　　41Whatwillitcosttotileakitchenfloorthatis12feetwideby20feetlongifthetilecost$8.91persquareyard?

　　A.$224.51B.$237.60

　　C.$246.55D.$271.38

　　E.$282.32

　　42Inawritingcompetition,thefirstplacewinnerreceives½oftheprizemoney.Thesecondrunnerupreceives¼ofwhatthewinnerwon.Whatwasthetotalamountofprizemoneydistributedifthewinnerreceives$6,000?

　　A.$6,000

　　B.$8,500

　　C.$12,000

　　D.$15,000

　　E.$18,500

　　43Youarelying120ftawayfromatreethatis50feettall.Youlookupatthetopofthetree.Approximatelyhowfarisyourhearfromthetopofthetreeinastraightline?

　　A.50feet

　　B.75feet

　　C.120feet

　　D.130feet

　　E.150feet

　　44Acyclistbikesxdistanceat10milesperhourandreturnsoverthesamepathat8milesperhour.Whatisthecyclist’saverageratefortheroundtrip