Two cubes have their volumes in the ratio 1 : 27. The ratio of their surface areas is

Question

Philoid · Accepted Answer

Given that,

Volumes are in the ration 1: 27

Therefore,

= =

a =

Or b = 3a

Or

We have to find out ratio of their surface areas:

=

Therefore, the surface areas are in the ratio 1: 9

Hence, option B is correct