A cube of side 3 units is formed using a set of smaller cubes of side 1 unit. Find the proportion of the number of faces of the smaller cubes visible to those which are NOT visible.
(A) 1: 4
(B) 1: 3
(C) 1: 2
(D) 2: 3
A cube of side 3 units is formed using a set of smaller cubes of side 1 unit. Find the proportion of the number of faces of the smaller cubes visible to those which are NOT visible.
(A) 1: 4
(B) 1: 3
(C) 1: 2
(D) 2: 3