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Logical Reasoning
General Mental Ability
A wooden block is 3 inches on an edge and all of its faces are painted black. If the block is cut such that 27 blocks result, each 1 cubic inch in volume, how many will have no painted faces?
Read Solution (Total 4)
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- assume the wooden block is rubics cube
for this all sides are painted with colours
the center one which we can't see it has no paints on any face
so answer is one(1). - 7 years agoHelpfull: Yes(5) No(0)
- Dimension of bigger cube 3-3-3
If we consider first face of dimensions 3×3×1 , it contains 9 cubes and opposite face of this side also contain same.
In middle only 3+2+3 sides are painted.
Middle one is unpainted .
So ans is 1. - 7 years agoHelpfull: Yes(2) No(1)
- only center block have no painted face.so answer is 1
- 7 years agoHelpfull: Yes(0) No(0)
- Only 1 i. e centre piece
- 5 years agoHelpfull: Yes(0) No(0)
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