This year’s AIME II was held on February 12th, 2025. Middle school and high school students who qualified through the AMC 10 and AMC 12 were able to compete. Congrats to everyone who participated!
The problems can now be discussed! See below for the answer key for the 2025 AIME II questions as well as the concepts tested on each problem. All answers for the AIME are in the form of 3-digit integers.
1
468
geometry: triangles, areas, and area methods
2
049
number theory: polynomial long division or factoring, and factors
3
082
combinatorics: counting and cases
4
106
algebra: logarithms, change of base, and factoring
5
336
geometry: triangles, circumcircles, inscribed angles, and angle chasing
6
293
geometry and algebra: tangent circles, triangles, Pythagorean theorem, areas, and equations
7
237
combinatorics: factors, subsets, complementary counting, and principle of inclusion-exclusion
8
610
number theory and combinatorics: greedy algorithms, making change, and patterns
9
149
algebra: trigonometry, graphs,maximums and minimums, and tangents
10
907
combinatorics: groups and spacing, stars and bars, and cases
11
113
combinatorics: counting, polygons, diagonals, and cases
12
019
geometry: congruent triangles, areas, perimeters, Law of Cosines, and equations
13
248
algebra and number theory: recursive sequences, patterns, modular arithmetic, and Chinese Remainder Theorem
14
104
geometry: symmetry, construction, equilateral triangles, and isosceles triangles
15
240
algebra: polynomials, minimums, quadratics, and factoring
The AIME I exam is administered by the Mathematical Association of America (MAA). Students are invited to take the AIME based on their scores for the AMC 10 and 12 exams. For general information about the AMC 10 and 12, click here.
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