Question

If each side of a unit cube increases by 1 cm, then the volume of the new cube will be times the original volume.

• A. 8
• B. 4
• C. 6

Answer 1

The correct option is A 8

Volume of unit cube = 1 $\times$ 1 $\times$ 1
= 1 cu. cm

New length of the side of the new cube
= 1 + 1
= 2 cm

Volume of the new cube = 2 $\times$ 2 $\times$ 2
= 8 cu. cm

So, we can say that the volume of the new cube is 8 times the original volume.