1998AIME 真题及答案解析
1998AIME 真题及答案解析 答案解析请参考文末 Problem 1 For how many values of is the least common multiple of the positive integers and , and ? Problem 2 Find the number of ordered pairs of posit...
1999AIME 真题及答案解析
1999AIME 真题及答案解析 答案解析请参考文末 Problem 1 Find the smallest prime that is the fifth term of an increasing arithmetic sequence, all four preceding terms also being prime. Problem 2 Consid...
2000AIME II真题及答案解析
2000AIME II真题及答案解析 答案解析请参考文末 Problem 1 The number can be written as where and are relatively prime positive integers. Find . Problem 2 A point whose coordinates are both integers...
2000AIME I真题及答案解析
2000AIME I真题及答案解析 答案解析请参考文末 Problem 1 Find the least positive integer such that no matter how is expressed as the product of any two positive integers, at least one of these two i...
2001AIME II真题及答案解析
2001AIME II真题及答案解析 答案解析请参考文末 Problem 1 Let be the largest positive integer with the following property: reading from left to right, each pair of consecutive digits of forms a perf...
2001AIME I真题及答案解析
2001AIME I真题及答案解析 答案解析请参考文末 Problem 1 Find the sum of all positive two-digit integers that are divisible by each of their digits. Problem 2 A finite set of distinct real numbers ha...
2002AIME II真题及答案解析
2002AIME II真题及答案解析 答案解析请参考文末 Problem 1 Given that and are both integers between and , inclusive; is the number formed by reversing the digits of ; and . How many distinct values...
CCO加拿大化学奥赛Canadian Chemistry Olympiad
CCO Canadian Chemistry Olympiad 加拿大化学奥林匹克学术活动 项目介绍 加拿大化学奥林匹克学术活动 Canadian Chemistry Olympiad (CCO)是一项旨在提高高中生对化学兴趣的年度权威化学学术活动之一。同时也为加...
2002AIME II真题及答案解析
2002AIME II真题及答案解析 答案解析请参考文末 Problem 1 Given that and are both integers between and , inclusive; is the number formed by reversing the digits of ; and . How many distinct values...
