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PURPLE COMET! MATH MEET April 2013 HIGH SCHOOL - PROBLEMS Copyright Titu Andreescu and Jonathan Kane Problem 1 Two years ago Tom was 25% shorter than Mary. Since then Tom has grown 20% taller, and ...
2021年11月AMC12考試 A卷 真題及解析
AMC12A Problems What is the value of? ? (A) 7 ????(B) 21 ???(C) 49 ???(D) 64 ???(E) 91 Menkara has a 46 index card. If she shortens the length of one side of this card by 1 inch, the card wo...
2021年11月AMC10 A試題及答案公布
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AMC10/12A卷預估分數線來啦！大咖為你分析重難點，B卷這樣考更容易晉級！
來了來了！久等了😆 你們想要的都整理好啦！ 2021 AMC10/12 A卷??真題+答案+解析視頻?? 本次AMC10/12 A卷難度如何？ 主要考察同學們哪些方面？ 時間來得及嗎？ …… 我們在昨天的考試結束后，對部分參考同學...
紫色彗星數學競賽真題（2012年高中組）
PURPLE COMET MATH MEET April 2012 HIGH SCHOOL - PROBLEMS Copyright Titu Andreescu and Jonathan Kane Problem 1 Last month a pet store sold three times as many cats as dogs. If the store had sold the...
紫色彗星數學競賽真題（2011年高中組）
PURPLE COMET MATH MEET April 2011 HIGH SCHOOL - PROBLEMS Copyright ?Titu Andreescu and Jonathan Kane Problem 1 The ratio of 3 to the positive number n is the same as the ratio of n to 192. Find n. ...
紫色彗星數學競賽真題（2010年高中組）
PURPLE COMET MATH MEET April 2010 HIGH SCHOOL - PROBLEMS Copyright Titu Andreescu and Jonathan Kane Problem 1 Let x satisfy (6x + 7) + (8x + 9) = (10 + 11x) + (12 + 13x). There are relatively prime...
紫色彗星數學競賽真題（2009年高中組）
PURPLE COMET MATH MEET April 2009 HIGH SCHOOL - PROBLEMS Copyright Titu Andreescu and Jonathan Kane Problem 1 In fifive years, Tom will be twice as old as Cindy. Thirteen years ago, Tom was three t...
AMC10/12 A卷今日落下帷幕！視頻講解搶先預定！
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