1.

If the ratio of radii of the bases of two cylinders is 2 : 3 and the ratio of their heights is 5 : 3, then the ratio of their volumes is1). 20 : 272). 7 : 53). 25 : 294). 20 : 29

Answer»

Let r = radius of base and h = height

Volume of CYLINDERS = πr2h

Given,

R/r = 2/3 and H/h = 5/3

Ratio of their VOLUMES =

= (2/3)2 × (5/3)

= 20/27

∴ Ratio of their volumes = 20 : 27


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