Question
Download Solution PDFA 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.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFA cube of side 18 cm is painted yellow on all the faces and then cut into smaller cubes of sides 3 cm each.
Cube is divided into 18/3 = 6 equal parts, hence n = 6.
Number of cubes with 2 sides painted = 12 (n - 2)
= 12 (6 - 2)
= 12 × 4
= 48
Hence, '48' is the correct answer.
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