Art of Problem Solving
AoPS Online
Math texts, online classes, and more
for students in grades 5-12.
Visit AoPS Online ‚
Books for Grades 5-12 Online Courses
Beast Academy
Engaging math books and online learning
for students ages 6-13.
Visit Beast Academy ‚
Books for Ages 6-13 Beast Academy Online
AoPS Academy
Small live classes for advanced math
and language arts learners in grades 2-12.
Visit AoPS Academy ‚
Find a Physical Campus Visit the Virtual Campus

2008 JBMO Problems

Problem 1

Problem 2

Problem 3

Find all prime numbers $p,q,r$, such that $\frac{p}{q}-\frac{4}{r+1}=1$

Problem 4

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=2008_JBMO_Problems&oldid=130716"