US College Students Baffled By Simple Question. Can You Solve It?

This brain-teaser is supposed to be simple, but it stumps many students. Can you figure it out? Skills tested: logic, reasoning, algebra, riddle, puzzle, mathematics, Harvard entrance exam style problem, interview question, genius test, IQ test, brain game

0:00 problem
0:57 error
3:34 solution

https://en.wikipedia.org/wiki/Andrei_...
https://commons.wikimedia.org/wiki/Fi...
Grahammin, CC BY-SA 4.0, via Wikimedia Commons
https://www.math.umd.edu/~jnd/Algebra...
https://faculty.utrgv.edu/eleftherios...
previous video
   • Most US College Students Get This Wrong  
https://mindyourdecisions.com/blog/20...

Get early access to videos by supporting the channel
   / @mindyourdecisions  
Patreon
  / mindyourdecisions  

Subscribe: https://www.youtube.com/user/MindYour...

Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas!

If you purchase through these links, I may be compensated for purchases made on Amazon. As an Amazon Associate I earn from qualifying purchases. This does not affect the price you pay.

Book ratings are from January 2025.

My Books (worldwide links)
https://mindyourdecisions.com/blog/my...

My Books (US links)
Mind Your Decisions: Five Book Compilation
https://amzn.to/2pbJ4wR
A collection of 5 books:
"The Joy of Game Theory" rated 4.2/5 stars on 564 reviews
http://amzn.to/1uQvA20
"The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" rated 4.2/5 stars on 55 reviews
http://amzn.to/1o3FaAg
"40 Paradoxes in Logic, Probability, and Game Theory" rated 4.2/5 stars on 81 reviews
http://amzn.to/1LOCI4U
"The Best Mental Math Tricks" rated 4.3/5 stars on 148 reviews
http://amzn.to/18maAdo
"Multiply Numbers By Drawing Lines" rated 4.5/5 stars on 57 reviews
http://amzn.to/XRm7M4

Mind Your Puzzles: Collection Of Volumes 1 To 3
https://amzn.to/2mMdrJr
A collection of 3 books:
"Math Puzzles Volume 1" rated 4.4/5 stars on 138 reviews
http://amzn.to/1GhUUSH
"Math Puzzles Volume 2" rated 4.2/5 stars on 45 reviews
http://amzn.to/1NKbyCs
"Math Puzzles Volume 3" rated 4.3/5 stars on 38 reviews
http://amzn.to/1NKbGlp

2017 Shorty Awards Nominee. Mind Your Decisions was nominated in the STEM category (Science, Technology, Engineering, and Math) along with eventual winner Bill Nye; finalists Adam Savage, Dr. Sandra Lee, Simone Giertz, Tim Peake, Unbox Therapy; and other nominees Elon Musk, Gizmoslip, Hope Jahren, Life Noggin, and Nerdwriter.

My Blog
https://mindyourdecisions.com/blog/

Twitter
  / preshtalwalkar  

Instagram
  / preshtalwalkar  

Merch
https://teespring.com/stores/mind-you...

Patreon
  / mindyourdecisions  

Press
https://mindyourdecisions.com/blog/press