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

Given, edge of a cube(a) is 9cm.

Now, volume of a cube(V)=`a^3`

`V=9^3`=`729 cm^3`

Here, l=15cm and b=12cm

Volume of water = `lxxbxxh`

`729=15xx12xxh`

`h=729/15xx12`

`h=4.05 cm `

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