Uploaded November 2025 | Updated September 2026, 2 weeks ago
Official Statement from MAA on this problem:
"We want to make you aware of an issue identified on the AMC 12 A Exam administered on November 5. After the administration, we learned that question 25 did not include the correct solution among the answer choices.
To ensure consistent scoring for all participants, AMC will take the following steps:
Question 25 will be removed from scoring.
Six points will be added to every participant’s score to preserve the 150-point maximum exam score. This adjustment will appear in the platform as an additional item marked correct for all students.
Qualification for the American Invitational Math Exam (AIME) is determined by percentile rankings within each qualifying exam. Since all AMC 12 A participants will receive the same correction, this adjustment will not create an advantage relative to other qualifying exams."
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Mastering AMC 10/12 book: omegalearn.org/mastering-amc1012.
The book includes video lectures for every topic on the AMC 10/12 contests, along with many useful formulas and hundreds of examples and practice problems with detailed video solutions.
Mastering AMC 8 book: omegalearn.org/mastering-amc8
The book covers the most important concepts on the AMC 8 contest, and includes video lectures for every chapter, formulas for every topic, and hundreds of examples and practice problems with detailed video solutions.
Join our Discord server to discuss problems from our books or any help with math competitions in general: bit.ly/OmegaLearnDiscord
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To get notifications for new videos, click here to subscribe:
bit.ly/2JjEDqr
For more practice, watch the following free courses:
1. AMC 8 Fundamentals Course:
youtube.com/playlist?list=PLT9bNzqjDoMmMNsMAJ3g7C4ptRnPMMrpT
2. AMC 8 Advanced Course:
youtube.com/playlist?list=PLT9bNzqjDoMmjM-PFJktrlab4-bkWwFMP
3. Mastering AMC 8 Course:
youtube.com/playlist?list=PLT9bNzqjDoMnF2rmrySRQF_c_gUjKkVMe
4. AMC 10/12 Fundamentals Course:
youtube.com/playlist?list=PLT9bNzqjDoMkoIg9K_bs4EjdpHYlS0L51
5. Mastering AMC 10/12 Course:
youtube.com/playlist?list=PLT9bNzqjDoMlmyxKw2bp5nHsEu-Zn9dac
More resources available at: omegalearn.org
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Tags:
AMC 8, AMC 8 Preparation, AMC 8 Crash Course, AMC 8 Concepts, AMC 8 Review, AMC 10, AMC 12, MATHCOUNTS, MathLeague, Number Theory, Primes, Factors, Competition math, Number of Factors, Sum of Factors, Product of Factors, Permutations, Combinations, Combinatorics, Modular Arithmetic, Recursion, Probability, Divisibility, Competition Math, Area of a Triangle, Similar Triangles, Cyclic Quadrilateral, Power of a Point, 3D Geo, Polygons, Coordinate Geometry
Official Statement from MAA on this problem:
"We want to make you aware of an issue identified on the AMC 12 A Exam administered on November 5. After the administration, we learned that question 25 did not include the correct solution among the answer choices.
To ensure consistent scoring for all participants, AMC will take the following steps:
Question 25 will be removed from scoring.
Six points will be added to every participant’s score to preserve the 150-point maximum exam score. This adjustment will appear in the platform as an additional item marked correct for all students.
Qualification for the American Invitational Math Exam (AIME) is determined by percentile rankings within each qualifying exam. Since all AMC 12 A participants will receive the same correction, this adjustment will not create an advantage relative to other qualifying exams."
-------------------------------------------------------------------------------------------------------------------------------------
Mastering AMC 10/12 book: omegalearn.org/mastering-amc1012.
The book includes video lectures for every topic on the AMC 10/12 contests, along with many useful formulas and hundreds of examples and practice problems with detailed video solutions.
Mastering AMC 8 book: omegalearn.org/mastering-amc8
The book covers the most important concepts on the AMC 8 contest, and includes video lectures for every chapter, formulas for every topic, and hundreds of examples and practice problems with detailed video solutions.
Join our Discord server to discuss problems from our books or any help with math competitions in general: bit.ly/OmegaLearnDiscord
-------------------------------------------------------------------------------------------------------------------------------------
To get notifications for new videos, click here to subscribe:
bit.ly/2JjEDqr
For more practice, watch the following free courses:
1. AMC 8 Fundamentals Course:
youtube.com/playlist?list=PLT9bNzqjDoMmMNsMAJ3g7C4ptRnPMMrpT
2. AMC 8 Advanced Course:
youtube.com/playlist?list=PLT9bNzqjDoMmjM-PFJktrlab4-bkWwFMP
3. Mastering AMC 8 Course:
youtube.com/playlist?list=PLT9bNzqjDoMnF2rmrySRQF_c_gUjKkVMe
4. AMC 10/12 Fundamentals Course:
youtube.com/playlist?list=PLT9bNzqjDoMkoIg9K_bs4EjdpHYlS0L51
5. Mastering AMC 10/12 Course:
youtube.com/playlist?list=PLT9bNzqjDoMlmyxKw2bp5nHsEu-Zn9dac
More resources available at: omegalearn.org
-------------------------------------------------------------------------------------------------------------------------------------
Tags:
AMC 8, AMC 8 Preparation, AMC 8 Crash Course, AMC 8 Concepts, AMC 8 Review, AMC 10, AMC 12, MATHCOUNTS, MathLeague, Number Theory, Primes, Factors, Competition math, Number of Factors, Sum of Factors, Product of Factors, Permutations, Combinations, Combinatorics, Modular Arithmetic, Recursion, Probability, Divisibility, Competition Math, Area of a Triangle, Similar Triangles, Cyclic Quadrilateral, Power of a Point, 3D Geo, Polygons, Coordinate Geometry
