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Hong Kong International Mathematical Olympiad (HKIMO) Senior Secondary level is designed for students in Grades 10 to 12 (Year 11 to 13). Past papers are the most effective way to master the competition's unique format, which focuses on five core mathematical areas rather than standard school curriculum. 1. Structure of the HKIMO Senior Secondary Paper The examination consists of 25 questions to be completed in 90 minutes

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Week 1–2: Core techniques — algebra & number theory fundamentals, problem sets. Week 3–4: Geometry intensive — 3–4 problems/day, learn common lemmas. Week 5: Combinatorics and counting strategies. Week 6: inequalities and mixed-topic practice. Week 7: Timed full papers (one every 3–4 days). Week 8: Review hardest mistakes, polish presentation and time management. Structure of the HKIMO Senior Secondary Paper The

: 25 questions (5 per topic) to be completed in 90 minutes. Total score of 100. Week 5: Combinatorics and counting strategies