Correct option is C
The length, breadth, and height of a cuboid are 20 cm, 16 cm and 8 cm.
The edge of each cube is 4 cm.
In both of the cases, volume should be the same.
Volume of cuboid = length × breadth × height
According to the question,
Let the number of cube are N
20 × 16 × 8 = N × 43
N = 5 × 4 × 2
N = 40