Q. 83.7( 6 Votes )

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

A. 1 : 3

B. 1 : 9

C. 1 : 27

D. None of these

Answer :

Given that,

Volumes are in the ration 1: 27

Therefore,

= =

a =

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

Rate this question :

How useful is this solution?

We strive to provide quality solutions. Please rate us to serve you better.

Related Videos

Quiz | Visualising Solid Shapes36 mins

NCERT | Surface Area of Solid Shapes39 mins

Lets Roll Around a Circle51 mins

Area of Polygons41 mins

Units and Systems of Measurement53 mins

Units and Systems of Measurement49 mins

Out-of-the-box Concepts of Metals and Non-metals28 mins

Quiz | Conservation of Plants and Animals35 mins

Threats to Biodiversity46 mins

Champ Quiz | Wildlife Conservation42 mins

Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Expertsview all courses

Dedicated counsellor for each student

24X7 Doubt Resolution

Daily Report Card

Detailed Performance Evaluation