If the radii of two cylinders are in the ratio 2:3 and their heights are in the ratio 5:3, then find the ratio of their volumes.

Explanation

Volume of cylinder is `pir^2h`

So, `V^'/V^('')=pi2^25/pi3^23`

`V^'/V^('')=20/27`

Hence, the ratios of their volumes are `20:27`.