ExamShortcut

Order & Ranking

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medium importance~1-2 Q in Tier 13 formulas⚡ 4 shortcuts4 subtopics

Every formula in this topic, grouped by subtopic. Print it and pin it above your desk.

How ranking questions work

Mirror position
p' = n + 1 - p

Position from the other end.

Total from two ranks
n = a + b - 1

Same person, ranked from both ends.

Between count
\text{between} = |a - b| - 1

Two positions measured from the SAME end.