World Mathematics Team Championship(WMTC) 2018 Junior Level 기출문제

날짜:


  1. 9thWorld Mathematics Team Championship 2018Junior LevelTeamRoundEnglish VersionInstruction:This round has14questions (40 minutes).Each question is worth 5 points.No point penalty for submitting wrong answer.1.Find the number of3digit numbers without 0in their decimal representationwithsum of all digits equals to 23.2.In a pile of9coins one is a fake.Supposewe canfind out whether the fake coinis among themin anymovewherewe pickfourcoins.Find the minimum numberof moves that guaranteefindingthe fake coin.3.The average weight of a group of people is 35.2 kilograms. Albert, who weighs45.6 kilograms, then joins the group. This raises the average weight of the groupto 36kilograms. How many children were in the original group?4.PointsM,Non the sideACand pointPon the sideBCof triangleABCare such thatAM = MN = NCandBP=PC.IfSABC= 30 cm2,findSMNP.Junior Level Team Round


AMC 8/10/12 미국수학경시대회 AIME
SCAT SSAT PSAT GED SATmath ACT​ 
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