{"id":2778,"date":"2025-11-14T10:23:19","date_gmt":"2025-11-14T18:23:19","guid":{"rendered":"https:\/\/areteem.org\/blog\/?p=2778"},"modified":"2025-11-14T10:23:21","modified_gmt":"2025-11-14T18:23:21","slug":"2025-amc-10b-amc-12b-answer-key-released","status":"publish","type":"post","link":"https:\/\/areteem.org\/blog\/2025-amc-10b-amc-12b-answer-key-released\/","title":{"rendered":"2025 AMC 10B & AMC 12B Answer Key Released"},"content":{"rendered":"\n

The AMC 10B and 12B Competitions were held yesterday. Congrats to the thousands who competed!<\/p>\n\n\n\n

The problems can now be discussed. See below for answer keys and concepts tested for every problem on the 2025 AMC 10B and AMC 12B held on November 13th, 2025.<\/p>\n\n\n\n

2025 AMC 10B Answers<\/strong><\/p>

\n
1<\/strong><\/div>\n
B<\/strong><\/div>\n
arithmetic: quotients<\/div>\n<\/div>\n
\n
2<\/strong><\/div>\n
D<\/strong><\/div>\n
number theory: remainders, patterns, and sums<\/div>\n<\/div>\n
\n
3<\/strong><\/div>\n
D<\/strong><\/div>\n
algebra and combinatorics: Pascal’s triangle and patterns<\/div>\n<\/div>\n
\n
4<\/strong><\/div>\n
A<\/strong><\/div>\n
number theory: bases and equations<\/div>\n<\/div>\n
\n
5<\/strong><\/div>\n
C<\/strong><\/div>\n
geometry: triangles, circumcircles, and inscribed angles<\/div>\n<\/div>\n
\n
6<\/strong><\/div>\n
C<\/strong><\/div>\n
geometry: areas, similar triangles, and area ratios<\/div>\n<\/div>\n
\n
7<\/strong><\/div>\n
C<\/strong><\/div>\n
geometry: distances, Pythagorean theorem, and equations<\/div>\n<\/div>\n
\n
8<\/strong><\/div>\n
C<\/strong><\/div>\n
number theory: place values, digits, and modular arithmetic<\/div>\n<\/div>\n
\n
9<\/strong><\/div>\n
C<\/strong><\/div>\n
algebra and combinatorics: systems of inequalities and counting<\/div>\n<\/div>\n
\n
10<\/strong><\/div>\n
A<\/strong><\/div>\n
algebra: rational functions and polynomial long division<\/div>\n<\/div>\n
\n
11<\/strong><\/div>\n
B<\/strong><\/div>\n
combinatorics: counting derangements and probability<\/div>\n<\/div>\n
\n
12<\/strong><\/div>\n
C<\/strong><\/div>\n
geometry: areas, inscribed circles, and symmetry<\/div>\n<\/div>\n
\n
13<\/strong><\/div>\n
A<\/strong><\/div>\n
geometry: altitudes, medians, and similar triangles<\/div>\n<\/div>\n<\/div>
\n
14<\/strong><\/div>\n
C<\/strong><\/div>\n
combinatorics: choosing groups and probability<\/div>\n<\/div>\n
\n
15<\/strong><\/div>\n
D<\/strong><\/div>\n
algebra: factoring, partial sums, and telescoping series<\/div>\n<\/div>\n
\n
16<\/strong><\/div>\n
D<\/strong><\/div>\n
combinatorics: counting, colors, and cases<\/div>\n<\/div>\n
\n
17<\/strong><\/div>\n
B<\/strong><\/div>\n
algebra: averages, recursive sequences, and patterns<\/div>\n<\/div>\n
\n
18<\/strong><\/div>\n
D<\/strong><\/div>\n
algebra and number theory: square roots, floors, and sums of squares<\/div>\n<\/div>\n
\n
19<\/strong><\/div>\n
D<\/strong><\/div>\n
geometry: similar solids, volumes, and ratios<\/div>\n<\/div>\n
\n
20<\/strong><\/div>\n
A<\/strong><\/div>\n
geometry: circles, tangents, and special triangles<\/div>\n<\/div>\n
\n
21<\/strong><\/div>\n
C<\/strong><\/div>\n
combinatorics: symmetry, parity, and paths<\/div>\n<\/div>\n
\n
22<\/strong><\/div>\n
A<\/strong><\/div>\n
combinatorics and number theory: divisibility rules, stars and bars, and counting<\/div>\n<\/div>\n
\n
23<\/strong><\/div>\n
C<\/strong><\/div>\n
algebra and number theory: linear Diophantine equations<\/div>\n<\/div>\n
\n
24<\/strong><\/div>\n
E<\/strong><\/div>\n
combinatorics: probability states and systems of equations<\/div>\n<\/div>\n
\n
25<\/strong><\/div>\n
B<\/strong><\/div>\n
geometry and number theory: paths, reflections, symmetry, and Diophantine equations<\/div>\n<\/div>\n<\/div><\/div>\n\n

2025 AMC 12B Answers<\/strong><\/p>

\n
1<\/strong><\/div>\n
B<\/strong><\/div>\n
arithmetic: quotients<\/div>\n<\/div>\n
\n
2<\/strong><\/div>\n
D<\/strong><\/div>\n
number theory: remainders, patterns, and sums<\/div>\n<\/div>\n
\n
3<\/strong><\/div>\n
D<\/strong><\/div>\n
algebra: complex numbers<\/div>\n<\/div>\n
\n
4<\/strong><\/div>\n
A<\/strong><\/div>\n
number theory and algebra: number bases and equations<\/div>\n<\/div>\n
\n
5<\/strong><\/div>\n
E<\/strong><\/div>\n
number theory: linear Diophantine equations<\/div>\n<\/div>\n
\n
6<\/strong><\/div>\n
C<\/strong><\/div>\n
number theory: place values, digits, and modular arithmetic<\/div>\n<\/div>\n
\n
7<\/strong><\/div>\n
C<\/strong><\/div>\n
algebra: logarithms, logarithm rules, and telescoping sums<\/div>\n<\/div>\n
\n
8<\/strong><\/div>\n
C<\/strong><\/div>\n
algebra: roots, conjugates, and Vieta’s theorem<\/div>\n<\/div>\n
\n
9<\/strong><\/div>\n
C<\/strong><\/div>\n
number theory: modular arithmetic and patterns<\/div>\n<\/div>\n
\n
10<\/strong><\/div>\n
A<\/strong><\/div>\n
geometry: altitudes, medians, and similar triangles<\/div>\n<\/div>\n
\n
11<\/strong><\/div>\n
C<\/strong><\/div>\n
combinatorics: choosing groups and probability<\/div>\n<\/div>\n
\n
12<\/strong><\/div>\n
C<\/strong><\/div>\n
geometry: special triangles, areas, and Cavalieri’s principle<\/div>\n<\/div>\n
\n
13<\/strong><\/div>\n
D<\/strong><\/div>\n
combinatorics: counting, colors, and cases<\/div>\n<\/div>\n<\/div>
\n
14<\/strong><\/div>\n
B<\/strong><\/div>\n
algebra: averages, recursive sequences, and patterns<\/div>\n<\/div>\n
\n
15<\/strong><\/div>\n
D<\/strong><\/div>\n
geometry: similar solids, volumes, and ratios<\/div>\n<\/div>\n
\n
16<\/strong><\/div>\n
B<\/strong><\/div>\n
geometry: angles, trigonometry, and half-angle formulas<\/div>\n<\/div>\n
\n
17<\/strong><\/div>\n
C<\/strong><\/div>\n
combinatorics: symmetry, parity, and paths<\/div>\n<\/div>\n
\n
18<\/strong><\/div>\n
D<\/strong><\/div>\n
combinatorics: expected value, conditional probability, and geometric distributions<\/div>\n<\/div>\n
\n
19<\/strong><\/div>\n
C<\/strong><\/div>\n
algebra and number theory: linear Diophantine equations<\/div>\n<\/div>\n
\n
20<\/strong><\/div>\n
E<\/strong><\/div>\n
combinatorics: probability states and systems of equations<\/div>\n<\/div>\n
\n
21<\/strong><\/div>\n
C<\/strong><\/div>\n
geometry: triangles, areas, and Pythagorean theorem<\/div>\n<\/div>\n
\n
22<\/strong><\/div>\n
C<\/strong><\/div>\n
algebra and geometry: complex numbers, polar form, transformations, and areas<\/div>\n<\/div>\n
\n
23<\/strong><\/div>\n
E<\/strong><\/div>\n
number theory: prime factorizations, modular arithmetic, and remainders<\/div>\n<\/div>\n
\n
24<\/strong><\/div>\n
D<\/strong><\/div>\n
algebra: graphing, logarithms, sine graph, and periodicity<\/div>\n<\/div>\n
\n
25<\/strong><\/div>\n
E<\/strong><\/div>\n
geometry: circumcircles, Ptolemy’s theorem, and law of cosines<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n

In total, 12 questions of the same questions appeared on both the AMC 10B and AMC 12B. They are listed below:<\/p>\n\n\n\n

<\/p>\n\n\n\n

AMC 10B<\/strong><\/td>AMC 12B<\/strong><\/td><\/tr>
1<\/td>1<\/td><\/tr>
2<\/td>2<\/td><\/tr>
4<\/td>4<\/td><\/tr>
8<\/td>6<\/td><\/tr>
13<\/td>10<\/td><\/tr>
14<\/td>11<\/td><\/tr>
16<\/td>13<\/td><\/tr>
17<\/td>14<\/td><\/tr>
19<\/td>15<\/td><\/tr>
21<\/td>17<\/td><\/tr>
23<\/td>19<\/td><\/tr>
24<\/td>20<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Want to see the problems?<\/strong> The 2025 AMC 10B and 12B problems will be available on the ZIML site along with previous exams. Click here for AMC 10<\/a> and here for AMC 12<\/a>.<\/p>\n\n\n\n

Starting to prep for the AIME?<\/strong> 8 Week Preparation Courses start soon! Click here for more details and registration<\/a>.<\/p>\n\n\n\n

The AMC 10 and 12 exams are administered by the Mathematical Association of America (MAA). For general information about the AMC 10 and 12, click here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Answers to the 2025 AMC 10B and 12B Exams held November 13, 2025 are available now. See all the answers and problem types from the exams!<\/p>\n","protected":false},"author":1,"featured_media":2781,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[87],"tags":[123,125,126,137,147,148,151,152],"yoast_head":"\n2025 AMC 10B & AMC 12B Answer Key Released - Areteem Institute Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/areteem.org\/blog\/2025-amc-10b-amc-12b-answer-key-released\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2025 AMC 10B & AMC 12B Answer Key Released - Areteem Institute Blog\" \/>\n<meta property=\"og:description\" content=\"Answers to the 2025 AMC 10B and 12B Exams held November 13, 2025 are available now. 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