The 10x10x10 Cube Brainteaser |

Jeff Altman, The Big Game Hunter shares another interview brainteaser with you.

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I have another 1 of those hedge fund brainteaser is for you.  It’s a math problem that requires a little bit of logic… It’s not that hard.

A 10 x 10 x 10 cube is painted red on the outside.  It is made up of individual 1 inch cubes.  How many of the cubes have red paint on them?

This starts off with the premise that all the outer facing cubes have paint and there are a bunch of interfacing one by one by one cubes don’t.  If you think for a 2nd, you realize that there is an interior 8 x 8 x 8 cube (whether individual cubes that had up to 8 x 8 x 8), which translates into 512 cubes of no paint.  That means there are 488 with paint because those provide the periphery to that inner cube.


JeffAltman, The Big Game Hunter
JeffAltman, The Big Game Hunter

Jeff Altman, The Big Game Hunter is a coach who worked as a recruiter for what seems like one hundred years. His work involves career coaching, as well as executive job search coaching, job coaching, and interview coaching. He is the host of “No BS Job Search Advice Radio,” the #1 podcast in iTunes for job search with over 2400 episodes.

Are you interested in 1:1 coaching, interview coaching, advice about networking more effectively, how to negotiate your offer or leadership coaching? People hire me to provide No BS career advice whether that is about a job search, hiring better, leadership, management or support with a workplace issue. Schedule a discovery call at my website, 

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4 Responses
  1. Jeff Altman, The Big Game Hunter

    #JeffAltman #TheBigGameHunter #toughinterviewquestions #interview #interviewtips #jobinterview #hedgefundbrainteasers #brainteasers  

  2. Abdullah Alghamdi

    Thank you for the tip! this was short and to the point better than most of the 10 minutes explanations I watched on Youtube!

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