A cub of `9\ c m` edge is immersed completely in a rectangular vessel containing water. If the dimensions of the base are `15 c m\ a n d\ 12 c mdot` Find the rise in water level in the vessel.

Explanation

Answer:
Volume of the cube will be equal to the volume of water displaced in the cuboid.

Volume of a cube `=a ^3`
Volume of a cuboid of `=l xx b xx h`.

`=>15xx12xxh=9xx9xx9`
`=>h=4.05cm`.Hence the answer is `4.05`.