Two soils of permeabilities $\mathrm{k}_1$ and $\mathrm{k}_2$ are placed in a horizontal flow apparatus, as shown in the figure. For Soil 1, $L_1=50 \mathrm{~cm}$, and $k_1=0.055 \mathrm{~cm} / \mathrm{s}$; for Soil 2, $L_2=30 \mathrm{~cm}$, and $\mathrm{k}_2=0.035 \mathrm{~cm} / \mathrm{s}$. The cross sectional area of the horizontal pipe is $100 \mathrm{~cm}^2$, and the head difference ( $\Delta \mathrm{h}$ ) is 150 cm . The discharge (in $\mathrm{cm}^3 / \mathrm{s}$ ) through the soils is ________ (rounded off to 2 decimal places).