Question

The ratio of radii of two cylinders is 2 : 3 and the ratio of their
height is 5:3. The ratio of their volumes will be:​

Answer 1

Answer:

20:9

Step-by-step explanation:

V.of cylinder=πr^2h

ratio of radii =2:3

so let radius of 1st cylinder=2k and radius of 2nd cylinder=3k

ratio of ht.=5:3

let ht. of 1st cylinder be 5k and ht. of 2nd cylinder be 3k

now ratio of vol.=π(2k)^2•5k/π(3k)^2•3k

=20:9