Question $3(30$ marks$)$

Given that gasoline with a density of $860k\frac{g}{m^3}$ is at point A$-$B & C$-$D$,$ while diesel with a density of $760K\frac{g}{m^3}$ is at point $B-C,$ and the pressure at point $A$ is $70$ Kpa $,$ Calculate the:

$($i$)$ Head of diesel at B$-$C

$($ii$)$ Head of Gasoline at C$-$D

$($iii$)$ Pressure at D