SITUATION $17(72-74)$: Earth is required to be excavated from borrow pits for building an embankment. The wet unit weight of undisturbed soil is $18K\frac{N}{m^3}$ and its water content is $8\%.$ In order to build a $4$ m high embankment with top width $2$ m and side slopes $1$:$1.$The dry unit weight required in the embankment is $15K\frac{N}{m^3}.$ Assume $G=2\mathrm{.}67.$

$72.$ Determine the void ratio of the undisturbed soil.

a$.0\mathrm{.}634$

c$.0\mathrm{.}571$

b$.0\mathrm{.}589$

d$.0\mathrm{.}781$

$73.$ Determine the void ratio of the remolded state

a$.0\mathrm{.}746$

c$.0\mathrm{.}712$

b$.0\mathrm{.}571$

d$.0\mathrm{.}456$

$74.$ Estimate the quantity earth required to be excavated per meter length of the embankment.

a$.,21\mathrm{.}60m^3$

c$.20\mathrm{.}00m^3$

b$.28\mathrm{.}80m^3$

d$.26\mathrm{.}67m^3$

$18$