The ratio of the radii of two cylinders is 2 : 3 and the ratio of their heights is 5 : 3. The ratio of their volumes will be
Given that,
= 
Also,
= 
We know that,
Volume of cylinder = 
r2h
Therefore,
= 
= 
Therefore, the volume of given two cylinders will be in the ration 20: 27
Hence, option C is correct
30