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Aptitude · Q60

Mensuration 3d

Competitive Exams · Aptitude · question 60

Q60

A cube of edge 6 cm is painted on all sides and then cut into unit cubes. The number of unit cubes with no sides painted is

A.
0
B.
64
Answer
C.
186
D.
108

Answer: Option B

Solution

Answer: Option B
Solution:
Number of cubes with no side painted = (n - 2)3
Where n is the side of the bigger cube
Required number = (6 - 2)3 = 64