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Question
How many cubes have only one of their faces painted ?
How many cubes have only one of their faces painted ?
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Solution
The correct option is C 24
There are 64 small cubes.
Hence, one side of the big cube = 3√64=4
Number of cubes having one face colored = (n−2)2×faces
Here, n=sideofbigsideofsmall
n=41=4
Thus, required number = (4−2)2×6=24
There are 64 small cubes.
Hence, one side of the big cube = 3√64=4
Number of cubes having one face colored = (n−2)2×faces
Here, n=sideofbigsideofsmall
n=41=4
Thus, required number = (4−2)2×6=24
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