Question

A cylindrical glass of radius 7 cm is partially filled with water . 154 metal cubes of edge length 1 cm have been dropped into this glass slowly.after that water rises up to the brim of the glass .the rise in water level will be

Answer 1

well, a layer of water 1cm deep will have volume 49π cm^3.

The volume of the cubes is 154 cm^3

That should tell you how to figure the depth of water occupied by the cubes.