The radii of two cylinders are in the ratio 2 : 1 and their heights are in the ratio 5 : 2. The ratio of their volumes is:

Correct option is C

Given:

The radii of two cylinders are in the ratio 2 : 1 and their heights are in the ratio 5 : 2.

Formula Used:

Volume of cylinder = π × $$r^2 \times h$$​​

Solution:

Let's assume that the radius of two cylinders are 2x and x, and their heights are 5y and 2y

Now, ratio of their volumes 

=> π × 4$$x^2$$​ × 5y : π × $$x^2$$​ × 2y

=> 4 × 5 : 2

=> 10 : 1