18th PMO National Stage Questions

Attached here in this post are the questions (with solutions) from the 18th Philippine Mathematical Olympiad – National Stage.

WRITTEN PHASE

18th PMO – National Stage – Written Phase (Questions)

18th PMO – National Stage – Written Phase (Answers)

ORAL PHASE

18th PMO – National Stage – Oral Phase (Questions)

18th PMO – National Stage – Oral Phase (Answers)