Two cones have their heights in the ratio `1 : 3` and the radii of their bases in the ratio `3 : 1`.
Channel: Doubtnut
Date: 2020-01-03

Two cones have their heights in the ratio `1 : 3` and the radii of their bases in the ratio `3 : 1`. Show that their volumes are in the ratio `3 : 1`