Difference between revisions of "2025 AIME II Problems"

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==Problem 3==   
 
==Problem 3==   
 
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Four unit squares form a <math>2 \times 2</math> grid. Each of the <math>12</math> unit line segments forming the sides of the squares is colored either red or blue in such a say that each unit square has <math>2</math> red sides and <math>2</math> blue sides. One example is shown below (red is solid, blue is dashed). Find the number of such colorings.
 
 
  
 
[[2025 AIME II Problems/Problem 3|Solution]]
 
[[2025 AIME II Problems/Problem 3|Solution]]

Revision as of 20:40, 13 February 2025

2025 AIME II (Answer Key)
Printable version | AoPS Contest CollectionsPDF

Instructions

  1. This is a 15-question, 3-hour examination. All answers are integers ranging from $000$ to $999$, inclusive. Your score will be the number of correct answers; i.e., there is neither partial credit nor a penalty for wrong answers.
  2. No aids other than scratch paper, rulers and compasses are permitted. In particular, graph paper, protractors, calculators and computers are not permitted.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Problem 1

Six points $A, B, C, D, E,$ and $F$ lie in a straight line in that order. Suppose that $G$ is a point not on the line and that $AC=26, BD=22, CE=31, DF=33, AF=73, CG=40,$ and $DG=30.$ Find the area of $\triangle BGE.$

Solution

Problem 2

Find the sum of all positive integers $n$ such that $n + 2$ divides the product $3(n + 3)(n^2 + 9)$.

Solution

Problem 3

Four unit squares form a $2 \times 2$ grid. Each of the $12$ unit line segments forming the sides of the squares is colored either red or blue in such a say that each unit square has $2$ red sides and $2$ blue sides. One example is shown below (red is solid, blue is dashed). Find the number of such colorings.

Solution

Problem 4

Solution

Problem 5

Solution

Problem 6

Solution

Problem 7

Solution

Problem 8

Solution

Problem 9

Solution

Problem 10

Solution

Problem 11

Solution

Problem 12

Solution

Problem 13

Solution

Problem 14

Solution

Problem 15

Solution

See also

2025 AIME II (ProblemsAnswer KeyResources)
Preceded by
2025 AIME I
Followed by
2026 AIME I
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
All AIME Problems and Solutions

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