Question

A cube of side 4 cm is painted black on the pair of one opposite surfaces, blue on the pair of another
opposite surfaces and red on the remaining pair of opposite surfaces. The cube is now divided into
smaller cubes of equal side of lcm each. Number of smaller cubes having less than 2 sides painted
are :
(A) 16
(B)24
(C) 32
(D) 40​

Answer 1

Step-by-step explanation:

0 painted = (4-2)³ = 2³ = 8

1 painted = 6(4-2)² = 6 × 4 = 24