The pressure in a pipe at $\mathrm{X}$ is to be measured by an open manometer as shown in figure. Fluid $\mathrm{A}$ is oil with a specific gravity of 0.8 and Fluid $\mathrm{B}$ is mercury with a specific gravity of $13.6.$ The absolute pressure at $\mathrm{X}$ is ___________ $\mathrm{kN} / \mathrm{m}^2$ (round off to one decimal place).
[Assume density of water as $1000 \mathrm{~kg} / \mathrm{m}^3$ and acceleration due to gravity as $9.81 \mathrm{~m} / \mathrm{s}^2$ and atmospheric pressure as $101.3 ~ \mathrm{kN} / \mathrm{m}^2$ ]
