A cube of side 18 cm is painted yellow on all the faces and then cut into smaller cubes of sides 3 cm each. Find the number of smaller cubes that have only two faces painted.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 48.
Cube is divided into 18/3 = 6 cubes
So, n = 6
The number of smaller cubes that have only two faces painted = 12(n - 2)
= 12(6 - 2) = 12(4) = 48