MC2018 Prov. Co-op Solutions

Here is the video I created going through all 15 problems on the UBC Math Challengers 2018 Provincial Co-op section. Learn and enjoy!

Timestamps:

Problem 1: 00:10 Problem 2: 02:10 Problem 2 discussion on combinatorics: 07:00 Problem 3: 13:48 Problem 4: 16:27 Problem 5: 18:40 Problem 6: 21:24 Problem 7: 25:23 Problem 8: 29:00 Problem 9: 32:24 Problem 10: 35:25 Problem 11: 37:49 Problem 11 discussion on AM-GM: 40:04 Problem 12: 43:26 Problem 13: 46:53 Problem 14: 50:36 Problem 14 discussion on counting in two ways: 55:42 Problem 15: 58:45