



 
We have two responses for you Ashutosh, I am going to look at a block measuring 4 units by 3 units by 3 units with base 3 units by 3 units. Again paint the outside other than the base red. How many of the unit cubes have exactly one face painted red? I then looked for unit blocks that had exactly two faces painted red and over painted thee faces orange. Finally I looked for unit cubes that had exactly three faces painted red and I over painted these faces green. So I get
For a total of 3 × 3 × 4 = 36 blocks. Can you do something similar foe your block? Penny
Ashutosh, Count the number of blocks on the exposed faces that aren't on a side or top edge. Stephen.
 


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