A differential ‘U’ tube manometer and inverted ‘U’ tube manometer are connected to two pipelines carrying water as shown in the figure. The manometric fluids have specific gravity 13.6 and 0.475. The ratio of the reading of inverted ‘U’ tube manometer (x₂) to upright ‘U’ tube manometer (x₁) will be?

Here, specific gravity as 13.6 is given for manometric fluid 1, and, the specific gravity as 0.475 is given for manometric fluid 2.