Question

The ratio of the radii of two cylinders of equal height is 1:3. Find the ratio of their volumes.1:9

Answer 1

Answer:

let r1 and r2 be radii of two cyclinder and v1, v2 be their volume

let h be height of the two cyclinders , then

v1=ttr2h an v2 =ttr22h

therefore v1/v2=ttr12h/ttr22h=r12/r22=16/25.