If each side of a cube becomes three times of itself, then its volume __________ of its original volume.

Correct option is C

Formula Used:

Volume of a cube = side³

Solution:

Let the original side length of the cube be s.
Original Volume = s³
New side length = 3s
New Volume = (3s)³
New Volume = 3³ × s³
New Volume = 27s³

The volume becomes 27 times of its original volume.