If each side of a dice becomes four times , then the percentage change in the surface area is:

100% 1300% 1000% 1500%

1500%

Surface area of cube = 6a2 After becoming four times each side of the cube new surface area = 6 (4a)2                             = 16 (6a2)                             = 16 (actual surface area) Surface area ⇒ Old : New = 1 :  16 Increased percentage = \(\frac{15}{1}\) × 100 = 1500%