Q. A cube is painted on all faces and divided into 125 equal cubes. The number of cubes having exactly two painted faces is:
β
Correct Answer: (B)
36
Explanation: Exactly two painted faces = 12 × (5 − 2) = 12 × 3 = 36.
Explanation by: Mahesh Chandra
Exactly two painted faces = 12 × (5 − 2) = 12 × 3 = 36.