SAT数学真题

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1.HowlongwillLucyhavetowaitbeforeforher$2,500investedat6%earns$600insimpleinterest?A.2yearsB.3yearsC.4yearsD.5yearsE.6years2.Gracehas16jellybeansinherpocket.Shehas8redones,4greenones,and4blueones.Whatistheminimumnumberofjellybeansshemusttakeoutofherpockettoensurethatshehasoneofeachcolor?A.4B.8C.12D.13E.163.Ifr=5zthen15z=3y,thenr=A.yB.2yC.5yD.10yE.15y4.Whatis35%ofanumberif12is15%ofanumber?A.5B.12C.28D.33E.625.Acomputerisonsalefor$1600,whichisa20%discountofftheregularprice.Whatistheregularprice?A.$1800B.$1900C.$2000D.$2100E.$22006.AcardealersellsaSUVfor$39,000,whichrepresentsa25%profitoverthecost.WhatwasthecostoftheSUVtothedealer?A.$29,250B.$31,200C.$32,500D.$33,800E.$33,9997.Afterhavingtopayincreasedincometaxesthisyear,EdmondhastosellhisBMW.Edmondboughtthecarfor$49,000,buthesolditfora20%loss.WhatdidEdmondsellthecarfor?A.$24,200B.$28,900C.$35,600D.$37,300E.$39,2008.IfSamcandoajobin4daysthatLisacandoin6daysandTomcandoin2days,howlongwouldthejobtakeifSam,Lisa,andTomworkedtogethertocompleteit?A.0.8daysB.1.09daysC.1.23daysD.1.65daysE.1.97days9.Find0.12÷12A.100B.10C.1D.0.01E.0.00110.Dividex5byx2A.x25B.x10C.x7D.x3E.x2.511.Whichofthefollowingnumberscouldbedescribedinthefollowingway:anintegerthatisanatural,rationalandwholenumber?A.0B.1C.2.33D.-3E.noneoftheabove12.Findthemodeofthefollowinglistofnumbers:2,4,6,4,8,2,9,4,3,8A.2B.3C.4D.5E.613.Inthefraction3/x,xmaynotbesubstitutedbywhichofthefollowingsets?A.{1,2,4}B.{-2,-3,-4}C.{1,3,7}D.{0,10,20}E.{1.8,4.3}14.Sarahneedstomakeacakeandsomecookies.Thecakerequires3/8cupofsugarandthecookiesrequire3/5cupofsugar.Sarahhas15/16cupsofsugar.Doesshehaveenoughsugar,orhowmuchmoredoessheneed?A.Shehasenoughsugar.B.Sheneeds1/8ofacupofsugar.C.Sheneeds3/80ofacupofsugar.D.Sheneeds4/19ofacupofsugar.E.Sheneeds1/9ofacupofsugar.15.Atacompanyfishfry,1/2inattendanceareemployees.Employees'spousesare1/3oftheattendance.Whatisthepercentageofthepeopleinattendancewhoarenotemployeesoremployeespouses?A.10.5%B.16.7%C.25%D.32.3%E.38%16.Inacollege,somecoursescontributemoretowardsanoverallGPAthanothercourses.Forexample,ascienceclassisworth4points;mathematicsisworth3points;Historyisworth2points;andEnglishisworth3points.Thevaluesofthegradelettersareasfollows,A=4,B=3,C=2,D=1,F=0.WhatistheGPAofastudentwhomadea“C”inTrigonometry,a“B”inAmericanHistory,an“A”inBotany,anda“B”inMicrobiology?A.2.59B.2.86C.3.08D.3.33E.3.6717.Thereare8ouncesina½pound.Howmanyouncesarein73/4lbs?A.12ouncesB.86ouncesC.119ouncesD.124ouncesE.138ounces18.IfthevalueofxandyinthefractionXZ/Yarebothtripled,howdoesthevalueofthefractionchange?A.increasesbyhalfB.decreasesbyhalfC.triplesD.doublesE.remainsthesame19.Whatisthenextnumberinthefollowingpattern?1,1/2,1/4,1/8,___A.1/10B.1/12C.1/14D.1/15E.1/1620.Ofthefollowingunitswhichwouldbemorelikelyusedtomeasuretheamountofwaterinabathtub?A.kilogramsB.litersC.millilitersD.centigramsE.volts21.Ifamatchboxis0.17feetlong,whatisitslengthininchesthemostcloselycomparabletothefollowing?A.51/16inchhighlighterB.31/8inchjewelryboxC.23/4inchlipstickD.23/16inchstapleremoverE.41/2inchcalculator22.Whichofthefollowingfractionsistheequivalentof0.5%?A.1/20B.1/200C.1/2000D.1/5E.1/50023.Inthegraphbelow,noaxesororiginisshown.IfpointB'scoordinatesare(10,3),whichofthefollowingcoordinateswouldmostlikelybeA's?A.(17,-2)B.(10,6)C.(6,8)D.(-10,3)E.(-2,-17)24.Overthecourseofaweek,Fredspent$28.49onlunch.Whatwastheaveragecostperday?A.$4.07B.$3.57C.$6.51D.$2.93E.$5.4125.Ofthefollowingunits,whichwouldbemostlikelytomeasuretheamountofsugarneededinarecipefor2dozencookies?A.degreesCelsiusB.millilitersC.quartsD.kilogramsE.cups26.Jimhas5piecesofstring.Heneedstochoosethepiecethatwillbeabletogoaroundhis36-inchwaist.Hisbeltbroke,andhispantsarefallingdown.Thepieceneedstobeatleast4incheslongerthanhiswaistsohecantieaknotinit,butitcannotbemorethat6incheslongersothattheendswillnotshowfromunderhisshirt.Whichofthefollowingpiecesofstringwillworkthebest?A.34/5feetB.32/3feetC.33/8feetD.31/4feetE.21/2feet27.Afterpurchasingaflatscreentelevisionfor$750,Johnrealizesthathegotagreatdealonitandwishestosellitfora15%profit.Whatshouldhisaskingpricebeforthetelevision?A.$800.30B.$833.60C.$842.35D.$862.50E.$970.2528.If300jellybeanscostyouxdollars.Howmanyjellybeanscanyoupurchasefor50centsatthesamerate?A.150/xB.150xC.6xD.x/6E.1500x29.If6is24%ofanumber,whatis40%ofthesamenumber?A.8B.10C.15D.20E.2530.Leeworked22hoursthisweekandmade$132.Ifsheworks15hoursnextweekatthesamepayrate,howmuchwillshemake?A.$57B.$90C.$104D.$112E.$12231.Thelastweekofamonthacardealershipsold12cars.Anewsalespromotioncameoutthefirstweekofthenextmonthandthesold19carsthatweek.Whatwasthepercentincreaseinsalesfromthelastweekofthepreviousmonthcomparedtothefirstweekofthenextmonth?A.58%B.119%C.158%D.175%E.200%32.If8x+5x+2x+4x=114,the5x+3=A.12B.25C.33D.47E.8633.Iftwoplanesleavethesameairportat1:00PM,howmanymilesapartwilltheybeat3:00PMifonetravelsdirectlynorthat150mphandtheothertravelsdirectlywestat200mph?A.50milesB.100milesC.500milesD.700milesE.1,000miles34.WhatisthecostindollarstosteamcleanaroomWyardswideandLyardslongi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