The Kürschák Mathematics Competition is the oldest high school mathematics competition in the world, dating back to 1894. This book is a continuation of Hungarian Problem Book III and takes the contest through 1963. Forty-eight problems in all are presented in this volume. Problems are classified under combinatorics, graph theory, number theory, divisibility, sums and differences, algebra, geometry, tangent lines and circles, geometric inequalities, combinatorial geometry, trigonometry and solid geometry. Multiple solutions to the problems are presented along with background material. There is a substantial section entitled 'Looking Back', which provides additional insights into the problems. Hungarian Problem Book IV is intended for beginners, although the experienced student will find much here. Beginners are encouraged to work the problems in each section and then to compare their results against the solutions presented in the book. They will find ample material in each section to help them improve their problem-solving techniques.
• Working through the book allows students to develop their problem-solving skills • Background material and solutions are included • Suitable for beginners
Contents
Foreword George Berzsenyi; Preface; List of winners; 1. Kürschák Mathematics Competition problems: 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1957; 1958; 1959; 1960; 1961; 1962; 1963; Part II. Background: 2. Theorems in combinatorics; 3. Additional theorems in combinatorics; 4. Theorems in number theory; 5. Theorems in algebra; 6. Additional theorems in algebra; 7. Theorems in geometry; Part III. Solutions to Problems: 8. Problem set: combinatorics; 9. Problem set: graph theory; 10. Problem set: number theory; 11. Problem set: divisibility; 12. Problem set: sums and differences; 13. Problem set: algebra; 14. Problem set: geometry; 15. Problem set: tangent lines and circles; 16. Problem set: geometric inequalities; 17. Problem set: combinatorial geometry; 18. Problem set: trigonometry; 19. Problem set: solid geometry; Part IV. Looking Back: 20. Discussion on combinatorics; 21. Discussion on number theory; 22. Discussion on algebra; 23. Discussion on geometry; About the editors.
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