The barometric reading at a place is 73.5m Hg. Calculate the pressure at a point 30m below the surface of water contained in a reservoir at the place. [g = ms^-2, density = 1.2 x 10⁴kg m^-3, density of water = 1.0 x 10³m^-3]

• A.4.0 x 10⁵ Nm^-2
• B.3.0 x 10 ⁵ Nm^-2
• C.2.0 x 10⁵ Nm^-2
• D.1.0 x 10⁵ Nm^-2