The left limb of a U-tube manometer is connected to a pipe conveying water, the level of mercury (SG=13.6) in the leg being 0.8m below the center of the pipe line and the right limb is open to atmosphere. The level of mercury in the right limb is 0.6m above that in the left limb and the space above mercury in the right limb contains benzene (SG=0.88) to a height of 0.4m. Determine the pressure of water in the pipe.

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