Back at their table in Mong Kok, over cold milk tea, Fai summed it up. "We didn't get gold. But look." He showed his logbook. Six months ago, their average score on past papers was 12 out of 40. Today, in the real competition, they scored 28. The HKIMO past papers for senior secondary had done something that no textbook could. They had taught the Irregulars how to think like Olympians. They had shown them the hidden structure of competition math: that every "impossible" problem is just a common trick wearing a scary disguise.
: Heat Round papers typically contain 25 short questions (5 per category), while Final Round papers have 30 questions (6 per category). hkimo+past+papers+senior+secondary
Past papers from the last 5 years show a consistent trend: 40% of the marks come from Algebra, 30% from Number Theory, and 30% from Geometry/Combinatorics. Back at their table in Mong Kok, over
While I cannot provide direct download links due to copyright, here are reputable free sources for practice problems that mirror HKIMO style: Six months ago, their average score on past