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1)

A cube , painted on all its faces, is cut into 125 identicalsmaller cubes.

How many smaller cubes have no face painted ?


A) 100

B) 81

C) 64

D) 27

Answer:

Option A

Explanation:

 

Here $n^{3}=125$

$\Rightarrown=5$

Cube

Cubes with two faces painted:12(n-2)=12(3)=36