$(50$ pts$)4280kg$ per day of sunflower seects $(22$ mass $8$ of oil. $75$ mass $8$ inert sollit, and $7$ mass $\%$ hexane$)$ is to be extracted with fresh solvent mixture contains $2150kg$ hexarw and $25kg$ oil in a continuous counter current extractor. The leached soltite are to contain $184kg$ oil The data are given bolow

$\backslash$table$[[y,0,0\mathrm{.}1,0\mathrm{.}2,0\mathrm{.}3,0\mathrm{.}4,0\mathrm{.}3,0\mathrm{.}6,0\mathrm{.}7],[N,2,1\mathrm{.}94,1\mathrm{.}92,1\mathrm{.}85,1\mathrm{.}8,1\mathrm{.}7,1\mathrm{.}62,1\mathrm{.}55]]$

a$.N_0,y_N,$ and $x_3$

b$.$ Lo and $V_{N+1}$

c$.M$ and $x_{am}$

d$.L_N$

e$.V_1$ and the number of stages

f$.$ Percent recovery