Subsets — AMC & AIME Problems
Practice every real AMC 8, AMC 10, AMC 12, and AIME problem that uses Subsets — a combinatorics concept — each with a professionally curated solution, many with a video solution too, from LIVE by Po-Shen Loh. Browse all concepts or the full past-contest archive.
All problems are used with official legal permission of the Mathematical Association of America (MAA).
Filter by difficulty
These problems’ difficulty ratings come from real solve attempts on our platform. Tap a band or a contest to filter the list below, and tap a selected band again to include all difficulties. See the full difficulty guide.
AMC 10
2004 AMC 10A Problem 12 • 2005 AMC 10B Problem 25 • 2008 AMC 10A Problem 23 • 2017 AMC 10B Problem 17 • 2018 AMC 10B Problem 5 • 2021 AMC 10B Spring Problem 16 • 2022 AMC 10B Problem 14 • 2023 AMC 10B Problem 16 • 2024 AMC 10B Problem 12 • 2025 AMC 10A Problem 21
AMC 12
1972 AMC 12 Problem 4 • 1989 AMC 12 Problem 25 • 1991 AMC 12 Problem 30 • 2006 AMC 12A Problem 25 • 2007 AMC 12A Problem 25 • 2012 AMC 12A Problem 17 • 2017 AMC 12B Problem 11 • 2018 AMC 12B Problem 5 • 2023 AMC 12A Problem 24 • 2025 AMC 12A Problem 15
AIME
1983 AIME Problem 13 • 1986 AIME Problem 12 • 1988 AIME Problem 1 • 1988 AIME Problem 15 • 1989 AIME Problem 2 • 1989 AIME Problem 13 • 1991 AIME Problem 5 • 1992 AIME Problem 2 • 1992 AIME Problem 12 • 1993 AIME Problem 8 • 2002 AIME II Problem 9 • 2006 AIME I Problem 2 • 2007 AIME II Problem 10 • 2009 AIME II Problem 6 • 2010 AIME I Problem 7 • 2010 AIME II Problem 8 • 2014 AIME I Problem 5 • 2014 AIME II Problem 9 • 2017 AIME I Problem 12 • 2017 AIME II Problem 1 • 2018 AIME I Problem 9 • 2018 AIME I Problem 12 • 2021 AIME II Problem 6 • 2022 AIME I Problem 12 • 2023 AIME I Problem 11 • 2023 AIME II Problem 11 • 2024 AIME II Problem 6 • 2025 AIME II Problem 7