omptest.org
does publish the weighting of each exam — not on the syllabus page, which is where we looked for years, but on its
learning assessment page, read on 11 August 2026:
Functions, equations and inequalities 30% · Trigonometry 15% · Differentiation 20% · Geometry 20% · Integration 15%. The bars above are those percentages, and the right-hand column is the official share itself. Where one official group covers several chapters listed above, the group's percentage is split between them in proportion to the topic counts omptest.org publishes in the syllabus — that split is our deduction, and the only one on this page. Chapters 1 to 4 of the OMPT-D syllabus are marked
[Prerequisite Chapter] and carry no percentage at all — that is what
pre means in the right-hand column above, and the five graded groups add up to 100% without them. We still put one question of each into your mock, because a prerequisite you have forgotten costs you the same marks as one you never learned. Our mock exams draw on exactly these numbers: the bars on this page and the weights our engine draws from are the same file, and the build fails if they ever disagree.