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

2025 SSMO Team Round Problems/Problem 8

Revision as of 11:32, 9 September 2025 by Pinkpig (talk | contribs) (Created page with "==Problem== Adam has a fair coin with a <math>2</math> written on one side and a <math>3</math> written on the other. What is the expected number of times Adam needs to flip...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Problem

Adam has a fair coin with a $2$ written on one side and a $3$ written on the other. What is the expected number of times Adam needs to flip the coin for the sum of all his coin flips to be a multiple of $36$?

Solution

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=2025_SSMO_Team_Round_Problems/Problem_8&oldid=260060"