What is the percentage increase in the surface area of a cube when each side is doubled to the original value?
A
25%
B
50%
C
150%
D
300%
What is the percentage increase in the surface area of a cube when each side is doubled to the original value?
A
25%
B
50%
C
150%
D
300%
Let each edge of cube be ‘a’.
its surface area S=6a^2,
New edge =2a
New surface area, S=6.(2a)^2=24a^2
24a^2-6a^2=18a^2
6a^2.x/100=18a^2 —> x=%300
Answer: %300