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The 10x10x10 Cube Brainteaser |

The 10x10x10 Cube Brainteaser |

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


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.


Jeff Altman, The Big Game Hunter is a career and leadership coach who worked as a recruiter for more than 40 years. He is the host of “No BS Job Search Advice Radio,” the #1 podcast in iTunes for job search with more than 1200 episodes, “Job Search Radio,” “and his newest show, “No BS Coaching Advice” and is a member of The Forbes Coaches Council.

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Jeff Altman, The Big Game Hunter
Jeff Altman, The Big Game Hunter

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