Q. A cube is painted on all faces and divided into 125 equal cubes. The number of cubes having at least one painted face is:
✅ Correct Answer: (A)
98
Explanation: Total cubes = 125. Unpainted cubes = (5 − 2)³ = 27. Hence painted cubes = 125 − 27 = 98.
Explanation by: Mahesh Chandra
Total cubes = 125. Unpainted cubes = (5 − 2)³ = 27. Hence painted cubes = 125 − 27 = 98.