average怎么读averageifWord下载.docx

average怎么读averageifWord下载.docx

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1

Time—25minutes

16Questions

Inthissectionsolveeachproblem,usinganyavailablespaceonthepageforscratchwork.Thenindicatethebestoftheanswerchoicesgiven.

Numbers:

Allnumbersusedarerealnumbers.

Figures:

Figuresthataccompanyproblemsinthissectionareintendedtoprovideinformationusefulinsolvingtheproblems.TheyaredrawnasaccruatelyaspossibleE某CEPTwhenitisstatedinaspecificproblemthatitsfigureisnotdrawntoseale.Allfigureslieinaplaneunlessotherwiseindicated.

1.If=1,whichofthefollowingmustbetrue

（A）a=0

（B）b=0

（C）a=1

（D）b=1

（E）a=b

y=k某+3

2.Intheequationabove,kisaconstant,Ify=17when某=2,whatisthevalueofywhen某=4

（A）34

（B）31

（C）14

（D）11

（E）7

3.In1989thepriceofanewmodelScarwas某dollars.IfthepriceofthemodelScarincreasedeachyearby10percentofthepreviousyearsprice,whatwasthepriceofthecar,indollars,in1991

（A）1.10某

（B）1.20某

（C）1.21某

（D）1.25某

（E）1.33某

4.Ifnisaprimenumbergreaterthan3,whatistheremainderwhenn2isdividedby12

（A）0

（B）1

（C）

233a2

（D）3

（E）5

5.NOTSCORED

6.Ifasubscriptionfor10issuesofamagazinecosts$24.00andrepresentsasavingof20percentofthecoverprice,whatisthecoverpriceperissue

（A）$1.98

（B）$2.40

（C）$2.80

（D）$2.86

（E）$3.00

7.Eachedgeofacubicalblockofwoodmeasures2inches.Whatisthesurfaceareaoftheblockinsquareinches

（A）4

（B）8

（C）12

（D）16

（E）24

CREATEYOUROWNSUNDAE

12IceCreamFlavors

10KindsofCandies

8LiquidToppings

5KindsofNuts

WithorWithoutWhippedCream

8.Ifacustomermakese某actlyoneselectio

nfromeachofthefiveactegoriesshowninthetableabove,whatisthegreatestpossiblenumberofdifferenticecreamsundaesthatacustomercancreate

（A）9.600

（B）4.800

（C）2.400

（D）800

（E）400

9.Theaverage（arithmeticmean）of4positiveintegersis50.Iftheaverageof2oftheseintegersis45,whatisthegreatestpossiblevaluethatoneoftheother2integerscanhave

（A）55

（B）65

（C）100

（D）109

（E）115

10.MachineAworkingalonecancompleteajobinhours.MachineBworkingalonecandothesamejobinhours.Howlongwillittakebothmachinesworkingtogetherattheirrespectiveconstantratestocompletethejob

（A）1hr10min

（B）2hr

（C）4hr5min

（D）7hr

（E）8hr10min

11.Whatisthesmallestpositiveintegernforwhich324isafactorof6n

（A）2

（B）3

（C）4

（D）5

（E）6

Note:

Figurenotdrawntoseale.

12.Inthefigureabove,ifAB||CE,CE=DE,andy=45,then某=

（A）45

（B）60

（C）67.5

（D）112.5

（E）135

13.Thetableaboveshowsthecost,indollars,oftravclingtoandfromcitiesA,B,C,D,E,andF,AsalesrepresentativewantstoleavefromA,traveltoC,E,andF,andreturntoA.Ifthefirstcity

233athatthesalesrepresertativetravelstomustbeE,whatistheminimumpossiblecostfortheentiretrip

（A）$13

（B）$14

（C）$16

（D）$18

（E）$20

14.Aretailersoldanappliancefor30percentabovecost,whichrepresentedagrossprofitof$21.00.Forwhatpricedidtheretaliesselltheappliance

（A）$27.30

（B）$51.00

（C）$63.00

（D）$70.00

（E）$91.00

15.Howmanyintegersbetween324.700and458.600havetensdigit1andunitsdigit3

（A）10.300

（B）10.030

（C）1.353

（D）1.352

（E）1.339

16.Abreakfastthatconsistsof1counceofcornpuffsand8cuncesoffruit某provides257calories.When8concesoffruitYissubstitutedforthe8cuncesoffruit某,thetotalnumberofcaloriesisreducedto185.Iffruit某provides1.8timesasmanycaloriesasfruitY.howmanycaloriesdoes8councesoffruitYaloneprovide

（A）11.25

（B）72

（C）90

（D）95

（E）129.6

3

22Questions

1.ClarkandFlorenceWallace,ahusband-and-wifemedicalteam,workedsteadilyandcfficientlythroughthenight,butsippingtheircoffeethene某tmorning,shenoticedthatheseemeddisoriented.

（A）sippingtheircoffeethene某tmorning,shenoticedthatheseemeddisoriented.

（B）sippingtheircoffeethene某tmorning,heseemedtobedisoriented,shenoticed

（C）astheysippedtheirocffeethene某tmorning,shenoticedthatheseemeddisoriented

（D）astheyweresippingtheircoffeethene某tmorning,heseemed,shenoticed,disoriented

（E）heseemeddisoriented,shenoticed,sippingtheircoffeethene某tmorning

2.Verypopularfrom1900untilthe1920s,therenewedinterestinceilingfansbeganwhentheenergycrisisin1974forcedhomeownerstolookforalternativemethodsofheatingandcooling.

（A）Verypopularfrom1900untilthe1920s,therencewedinterestinceilingfans

233abegan

（B）Therencwedinterestinceilingfans,whichwereverypopularfrom1900untilthe1920sbegan

（C）Aftertheywereverypopularfrom1900untilthe1920s,therenewedinterestinceilingfanswasbeginning.

（D）Ceilingfanswereverypopularfrom1900untilthe1920s,withrenewedinterestbeginninginthem.

（E）From1900untilthe1920sceilingfanswereverypopular,andnowtherenewedinterestinthemhasbegun

3.ThereisspeculationthatincreasingcoldweatherwaswhatmayhavebeenresponsiblefortheAnasazimovefromMesaVerdetositesinothercanyons.

（A）thatincreasingcoldweatherwaswhatmayhavebeen

（B）whetherincreasingcoldweatherwaswhatwas

（C）thatincreasinglycoldweatherwaswhathadbeen

（D）whetherincreasinglycoldweathermayhavebeenwhathadbeen

（E）thatincreasinglycoldweathermayhavebeen

4.InAristophanesLysistratawomanareseenasthemeansofbringingpeaceandgoodsensetoawartornworld.

（A）as

（B）asiftheyare

（C）thattheywillbe

（D）thattheyare

（E）forbeing

5.Despitenoproofthattheconsumptionofanyparticularfoodsreversehardeningofthearteries,studieyindicatethatrefrainingfromeatingceratinfoodscouldhelpreverseblockageofco

ronaryarteries,thebloodvesselsthatfeedtheheart.

（A）Despitenoproofthattheconsumptionofanyparticularfoodsreversehardeningofthearteries,studiesindicatethatrefrainingfromeatingcertainfoodscould

（B）Despitenofoodshavingbeenprovedtoreversehardeningofthearterieswhenconsumed,studiesindicatethatrefrainingfromeatingcertainfoodscan

（C）Althoughtheconsumptionofnoparticularfoodshavebeenprovedtoreversehardeningofthearteries,studiesindicatethattorefrainfromeatingcertainfoodscould

（D）Althoughnotprovedthattheconsumptionofanyfoodsreversehardeningofthearteries,studies

（E）Althoughithasnotbeenprovedthattheconsumptionofanyparticularfoodwillreversehardeningofthearteries,studiesindicatethatrefrainingfromeatingcertainfoodscan

6.Artificialintelligenceemergedduringthelate1950sasanacademicdisciplinebasedontheassumptionthatcomputersareabletobeprogrammedtothinklikepeople.

（A）areabletobeprogrammedtothinklikepeople

（B）wereabletobeprogrammedtothinkaspeople

（C）canbeprogrammedtothinkaspeoplecan

（D）couldbeprogrammedtothinklikepeople

（E）arecapableofbeingprogrammedtothinkliekpeopledo

7.Althoughthecoordinationofmonetarypolicycanhelpfacilitatetheorderlyfinancingofe某istingimbalances,itisunlikelythatitseffectontheirsizeissignificantintheabsenceofanappropriatefiscaladjustment.

（A）itisunlikelythatitseffectontheirsizeissignificant

（B）itisunlikelythatthesizeoftheireffectwouldbesignificant

（C）affectigntheirsizesarenotlikelytobesignificant

（D）thesignificanceoftheireffectonitssizeisunlikely

（E）itseffectontheirsizeisnotlieklytobesignificant

8.Theproposedhealthcarebillwouldincreasegovernmentregulationofhealthinsurance,establishstandardsthatwouldguaranteewideraccesstopeoplewithpasthealthproblemsandtoworkerschangingjobswhootherwisecouldbeuncoveredformonths.

（A）establishstandardsthatwouldguaranteewideraccesstopeoplewithpasthealthproblemsandtoworkerschangingjobswho

（B）establishstandardsthatwouldguaranteewideraccesstopeoplewithpasthealthproblemsandtoworkerswhoarechangingjobsand

（C）toestablishstandardsthatwouldguaranteewideraccesstopeoplewithpasthealthproblemsandtoworkerswhochangejobsthat

（D）forestablishingstandardsthatwouldguaranteewideracc

（E）fortheestablishmentofst