Porisma

Review practice

All chapter practice

Choose a section to work through its questions and solutions. Your progress is shared across pages. Ranges follow collection order; original source labels are kept on each question.

Section 1 · Questions 1–6

Score three draws without replacement · Normalise the maximum score and count three-round orderings · +4 more

Section 2 · Questions 7–12

Take fourth moments when an area is proportional to the square · Respect the first-miss stopping rule before comparing rounds · +4 more