Solution (By Examveda Team)
$$\eqalign{
& {\text{Let total profit}} = {\text{16 units }} \cr
& {\text{According to the question,}} \cr
& {\text{Profit share of A}} \cr
& = \frac{3}{{16}} \times 16{\text{ units}} \cr
& = 3{\text{ units}} \cr
& {\text{profit share of B }} \cr
& {\text{ = }}\frac{1}{4} \times 16 = 4{\text{ units}} \cr
& {\text{then profit share of C}} \cr
& = \left[ {16 - \left( {4 + 3} \right)} \right] = 9{\text{ units}} \cr
& {\text{But profit of C}} = {\text{Rs}}{\text{. 243 (given)}} \cr
& {\text{9 units}} = {\text{Rs}}{\text{. 243}} \cr
& {\text{1 unit}} = {\text{Rs}}{\text{. 27}} \cr
& {\text{Profit share of B}} \cr
& = 4{\text{ units}} \cr
& = 27 \times 4 \cr
& = {\text{Rs}}{\text{. 108}} \cr} $$
Question is missing B's fraction.