Question

The ratio of radii of two cylinders is 2:3 and the ratio of their heights is 5:3. The ratio of their volume will be

Answer 1

let two cylinder volume V1 and V2
now
V1/V2={pi.(r1)^2.h1}/{pi. (r2)^2.h2}
={(2)^2.5 }/{(3)^2.3}
=20/27

Answer 2

the ratio of their volume is    20:27