Soil Mechanics

A stratified soil deposit consists of three horizontal layers of thickness $1.0\text{ m}, 2.0\text{ m}$, and $3.0\text{ m}$ with hydraulic conductivities of $2 \times 10^{-4}\text{ cm/s}, 4 \times 10^{-4}\text{ cm/s}$, and $6 \times 10^{-4}\text{ cm/s}$, respectively. The equivalent horizontal hydraulic conductivity ($K_h$) parallel to the bedding planes is ________ $\times 10^{-4}\text{ cm/s}$ (round off to 2 decimal places).