A cube of 3 units is painted on all sides. If this cube is divided into cubes of 1 unit, how many cube have none of their faces painted?(a)3(b)2(c)1(d)0(e)none of these

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nmodi

  • Jul 17th, 2005
 

Ans. 1 cube that's the center one

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Donneil

  • Aug 9th, 2006
 

(e) none of these

two cube -> 1 and one cube ->2

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donneil

  • Aug 9th, 2006
 

(e) none of these

(1 or 2)

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Naveen Chandra Joshi

  • Jan 2nd, 2007
 

1 cube.only one cube the center one. and all other r painted in atlest 1 side.

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indeb

  • Feb 6th, 2007
 

the answer is c(1). you have a cube of 3 by 3 by 3 total of 27 small cubes. that is 9 on top and 9 on the bottom and 8 (3 on each of the two sides plus 2 from the middle row minus the one in the center). hence that is your answer the one in the center.

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