how to get the top rank in various maths olympiads...?

There are quite a few books that can help. Maybe a local or school library in your are will have some of them

http://www.google.com/search?q=math+olympiad+questions&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

In google type:

imo-official

When you see list of results click on:

imo-official org

The procedure suggested above by anonymous will let you download previous problems at

http://www.imo-official.org/problems.aspx

Seems like a good place to start.

Here is a list of previous math contests in different categories from grade 7- grade 12 from my old

"Alma Mater" , the University of Waterloo.

http://www.cemc.uwaterloo.ca/contests/past_contests.html

This year, in just the grade 7-8 category, it drew about 80,000 participants.

All contests, results, and solutions can be downloaded.

Achieving a top rank in various math Olympiads requires dedication, practice, and a deep understanding of mathematical concepts. Here are several steps you can take to increase your chances of success:

1. Develop a strong foundation: Build a solid knowledge of mathematical concepts by studying your school curriculum thoroughly. Understand the fundamental concepts, principles, and theorems.

2. Enroll in advanced math programs: Join math clubs, enrichment programs, or attend math camps to enhance your problem-solving skills. These programs often provide access to challenging math problems and expert guidance.

3. Study past Olympiad papers: Familiarize yourself with the format and types of questions asked in math Olympiads. Solve previous years’ papers to develop problem-solving strategies and gain exposure to various mathematical topics.

4. Read textbooks and solve advanced problem sets: Look for textbooks used in math competitions as they contain challenging problems and solutions. Practice solving these problems regularly to improve your mathematical thinking.

5. Find a mentor or coach: Seek guidance from teachers, professors, or experienced mathematicians who can provide insight into tackling Olympiad-level problems. They can help you identify your strengths, weaknesses, and provide suggestions for improvement.

6. Join online forums and participate in math competitions: Engage in online math communities or forums where you can discuss problems with fellow enthusiasts. Participate in local, national, or international math competitions to refine your problem-solving skills and gain experience.

7. Be persistent and practice regularly: Consistent practice is key. Dedicate regular time to solve challenging math problems, analyze solutions, and review your mistakes. Learning from your errors is a crucial part of improving your problem-solving abilities.

8. Seek out additional resources: Explore additional resources such as websites, online courses, online lectures, and advanced math books to supplement your learning and broaden your knowledge.

Remember, achieving top ranks in math Olympiads is highly competitive and often demands hard work and persistence. Stay motivated, embrace challenges, and enjoy the journey of learning and problem-solving.