Difference between revisions of "2023 AIME I Problems/Problem 1"

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==Solutions==
 
==Solutions==
 
===Solution 1===
 
===Solution 1===
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Use combinatorics
  
 
===Solution 2===
 
===Solution 2===

Revision as of 12:58, 8 February 2023

Problem

Note: This is not official (I am posting this because the AIME I is officially over). Please post official problem statement after it is released.

There are five men and nine women randomly arranged in a circle. Let $\frac{x}{y}$ be the probability that every man stands diametrically opposite from a woman.

Find $x+y$.

Solutions

Solution 1

Use combinatorics

Solution 2

Something else

See also

2023 AIME I (ProblemsAnswer KeyResources)
Preceded by
First Question
Followed by
Problem 2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
All AIME Problems and Solutions