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紫色彗星數學競賽真題（2011年高中組）

2021-11-11

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）

2021-11-11

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）

2021-11-11

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！

2021-11-11

激動的心，顫抖的手！ AMC10/12 A卷考完啦！此時此刻的你是胸有成竹？腦子里還在糾結著某道題目？又或者是沒有參考，想看看真題挑戰一下自己？ #1?真題答案搶先看小編采訪了翰林的AMC導師，為大家帶來一些關...

紫色彗星數學競賽真題（2008年高中組）

2021-11-10

PURPLE COMET MATH MEET– April 2008 HIGH SCHOOL – PROBLEMS ? Copyright Titu Andreescu and Jonathan Kane Problem 1 What is the least positive integer with the property that the product of its digits ...

紫色彗星數學競賽真題（2007年高中組）

2021-11-09

PURPLE COMET MATH MEET– April 2007 HIGH SCHOOL – PROBLEMS ? Copyright Titu Andreescu and Jonathan Kane Problem 1 The sum of nine consecutive odd numbers is 2007. Find the greatest of these nine num...