Question

How many smaller cubes have two surfaces painted ?

• A. 8
• B. 16
• C. 24
• D. 36

Answer 1

The correct option is D 36

$n=\frac{sizeofbigcube}{sizeofsmallcube}=\frac{5}{1}=5$

Number of smaller cubes with two surfaces painted$=(n-2)\times 12$
$=(5-2)\times 12=36$.

Hence, option D is correct.