2006年AMC8试题及答案.pdf

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1、2006AMC8Problems/Problem1ProblemMindymadethreepurchasesfordollars,dollars,anddollars.Whatwashertotal,tothenearestdollar?SolutionThethreepricesroundto,,and,whichhasasumofSeeAlso2006AMC8(Problems•AnswerKey•Resources(http://www.artofproblemsolving.com/Forum/resources.php?c=182&cid=42&year=2006))

2、PrecededbyFollowedbyFirstProblem2Question1•2•3•4•5•6•7•8•9•10•11•12•13•14•15•16•17•18•19•20•21•22•23•24•25AllAJHSME/AMC8ProblemsandSolutionsTheproblemsonthispagearecopyrightedbytheMathematicalAssociationofAmerica(http://www.maa.org)'sAmericanMathematicsCompetitions(http://amc.maa.org).Retriev

3、edfrom"http://artofproblemsolving.com/wiki/index.php?title=2006_AMC_8_Problems/Problem_1&oldid=55964"Copyright©2016ArtofProblemSolving2006AMC8Problems/Problem2ProblemOntheAMC8contestBillyanswers13questionscorrectly,answers7questionsincorrectlyanddoesn'tanswerthelast5.Whatishisscore?SolutionAs

4、theAMC8onlyrewards1pointforeachcorrectanswer,everythingisirrelevantexceptthenumberBillyansweredcorrectly,.SeeAlso2006AMC8(Problems•AnswerKey•Resources(http://www.artofproblemsolving.com/Forum/resources.php?c=182&cid=42&year=2006))PrecededbyFollowedbyProblem1Problem31•2•3•4•5•6•7•8•9•10•11•12•

5、13•14•15•16•17•18•19•20•21•22•23•24•25AllAJHSME/AMC8ProblemsandSolutionsTheproblemsonthispagearecopyrightedbytheMathematicalAssociationofAmerica(http://www.maa.org)'sAmericanMathematicsCompetitions(http://amc.maa.org).Retrievedfrom"http://artofproblemsolving.com/wiki/index.php?title=2006_AMC_

6、8_Problems/Problem_2&oldid=55965"Copyright©2016ArtofProblemSolving2006AMC8Problems/Problem3ProblemElisaswimslapsinthepool.Whenshefirststarted,shecompleted10lapsin25minutes.Now,shecanfinish12lapsin24minutes.Byhowmanyminuteshassheimprovedherlaptime?SolutionWhenElisastarted,shefinishedalapinminu

7、tes.Now,shefinishesalapisminutes.Thedifferenceis.SeeAlso2006AMC8(Problems•AnswerKey•Resources(http://www.artofproblemsolving.com/Forum/resources.php?c=182&cid=42&year=2006))PrecededbyFollowedbyProblem2Problem41•2•3•4•5•6•7•8•9•10•11•12•13•14•