US 2017 Math kangaroo Problems Level 11-12-学生用卷
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2022-12-24 19:45:20
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US2017MathkangarooProblemsLevel11-12-学生用卷学生用卷1、【来源】2017年袋鼠数学竞赛(MathKangaroo)竞赛第1题(US2017MathkangarooProblems,Level11−12,Question#1)20⋅172+0+1+7=().A.3.4B.17C.34D.201.7E.3402、【来源】2017年袋鼠数学竞赛(MathKangaroo)竞赛第2题(US2017MathkangarooProblems,Level11−12,Question#2)BenlikestoplaywithhisH0-modelrailroad.HemodeledsomethingsintheH0-ratioof1:87,evena2cmhighmodelofhisbrother.HowtallisBen'sbrother?()A.1,74mB.1,62mC.1,86mD.1,94mE.1,70m3、【来源】2017年袋鼠数学竞赛(MathKangaroo)竞赛第3题(US2017MathkangarooProblems,Level11−12,Question#3)Inthefigurewesee10islandsthatareconnectedby15bridges.Whatisthesmallestnumberofbridgesthatneedtobeeliminatedinordertomakeitimpossibletogetfromtobyusingthebridges?()
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