5. Numerical based on pressure difference between two points

The pressure of water on the ground floor is 40000 $Pa$ and on the first floor is 10800 $Pa$. Find the height of the first floor.(Take : Density of water $=1000\mathit{kg}/m^3$, g$=10m/s^2$)(Enter the answer up to $2$ decimals)

 

  

Answer:

 

The height of the first floor is$m$

(Note: Answer must not exceed two decimals)