 2015

Source paper: released examination archive, member 2014/T/a13757w1.pdf. The original cover dates the examination to 24 June 2015, 9.30am to 11.00am. The folder name is not the examination year.

The complete three-page replacement is in the Mathematics Part A FOI release, member FOI-20210708-1 - Data/a13757w1 (5).pdf. Its intact pages 2–3 establish the complete three-question tree. The answers below replace the provisional fragments with full solutions to all 23 verified leaves, including the previously unavailable simplicial-complex and surface-classification material. The original archive link above is retained for provenance.