Pregunta de entrevista en Enova: Imagine a cube 1x1x1, then imagine that you form a cube of 10x10x10 with all these little cubes of 1x1x1. How many cubes do you have to remove to get rid of the surface of cubes.

Pregunta de entrevista

Entrevista de Business Analytics Intern

Imagine a cube 1x1x1, then imagine that you form a cube of 10x10x10 with all these little cubes of 1x1x1. How many cubes do you have to remove to get rid of the surface of cubes.

Respuestas de entrevistas

4 respuestas

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10*10*2 + 10*8*2 + 8*8*2

csd en 16 dic 2012

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(10*10*10)-(8*8*8)

SexyBeast en 1 dic 2012

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n^3 - x = (n-2)^3 x = n^3 - (n-2)^3 x = 6n^2 - 12n +8 if n = 10 then x = 488 surface cubes to remove

Ari en 31 dic 2018

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2*(10*10)+2*(10*8)+2*(8*8)=488

Anónimo en 23 sept 2013

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