Verbal Reasoning - Cube and Cuboid

All the faces of a cube are painted with blue colour. Then it is cut into 125 small equal cubes.

1. 

How many small cubes will be formed having only one face coloured ?

A. 54
B. 8
C. 16
D. 24

Answer: Option A

Explanation:

No. of small cubes having only one face coloured = (5 - 2)2 x 6

= 9 x 6

= 54


2. 

How many small cubes will be formed having no face coloured ?

A. 27
B. 8
C. 16
D. 24

Answer: Option A

Explanation:

No. of small cubes having no face coloured = (x - 2)3

= (5 - 2)3

= 27