The seepage occurring through an earthen dam is represented by a flownet comprising of 10 equipotential drops and 20 flow channels. The coefficient of permeability of the soil is $3 \mathrm{~mm} / \mathrm{min}$ and the head loss is $5 \mathrm{~m}$. The rate of seepage (expressed in $\mathrm{cm}^{3} / \mathrm{s}$ per $\mathrm{m}$ length of the dam) through the earthen dam is

The seepage occurring through an earthen dam is represented by a flownet comprising of 10 equipotential drops and 20 flow channels. The coefficient of permeability of the soil is $3 \mathrm{~mm} / \mathrm{min}$ and the head loss is $5 \mathrm{~m}$. The rate of seepage (expressed in $\mathrm{cm}^{3} / \mathrm{s}$ per $\mathrm{m}$ length of the dam) through the earthen dam is

127