Count the number of cubes in the given figure.
In the figure, there are
5 columns containing 4 cubes each;
33 columns containing 3 cubes each;
9 columns containing 2 cubes each and 3 columns containing 1 cube each.
Total Number of cubes = ( 5 x 4) + (33 x 3) + (9 x 2) + (3 x 1) = 20 + 99 + 18 + 3 = 140
As per the given all information in above question , we get
In layers I and IV four cubes each at the four corners will have three faces painted.
Hence , required answer will be option B .
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