OMK 2015 Muda Solutions

The OMK 2015 questions may be downloaded at the link below (by PERSAMA – Persatuan Matematik Malaysia) :

http://persama.org.my/documents/SoalanOMK2015.pdf

Here is a possible solution attempt at that paper:

(Note: OMK = Olimpiad Matematik Kebangsaan = Malaysian National Mathematical Olympiad ; Category “Muda” is for form 3 & form 4 students):