Question

A cube is given with an edge of 12 units.It is painted on all faces and then cut into smaller cubes of
edge of 4 units.How many cubes will have 2 faces painted?
A. 8 B. 12 C. 0 D. 2

Answer 1

Hello here is your answer by Sujeet yaduvanshi ☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝☝

Answer:-12


Solution:-)The cubes having two faces painted are:
So,

12(n-2)

where n=12/4=3

or

=)12(3-2)

=)12(1)

=)12


that's all

Answer 2

Answer:

There will be 12 small cubes with 2 painted faces.

Step-by-step explanation:

The given cube have 12 units and it cuts into small pieces with edge 4 unit.

So it mean we make 4 cuts on bigger cube (2 horizontal and 2 vertical).

We have 3 small cubes on each edge of bigger cube.  On each edge one (middle) cube have 2 painted faces and and corner cube have 3 painted faces.

As we all know that cube have 12 edges, so with reference to above statement we can say that we have 12 small cubes with 2 painted faces.