a) Rs. 180, Rs. 120, Rs. 144
b) Rs. 150, Rs. 130, Rs. 123
c) Rs. 160, Rs. 141, Rs. 125
d) Rs. 141, Rs. 110, Rs. 140

Answer: a
Explanation:

	A	:	B	:	C
Capital	500	:	400	:	800
	×	:	×	:	×
Time	12	:	10	:	6
Profit	6000	:	4000		4800
	15	:	10	:	12

$$\eqalign{ & \left( {15 + 10 + 12} \right){\text{units}} = {\text{Rs}}{\text{.}}\,{\text{444}} \cr & {\text{37 units}} = {\text{Rs}}{\text{. 444}} \cr & 1{\text{ unit}} = \frac{{444}}{{37}}{\text{ = Rs}}{\text{. 12}} \cr & {\text{Profit of A}} = 12 \times 15 = {\text{Rs}}{\text{.}}\,{\text{180}} \cr & {\text{Profit of B}} = 12 \times 10 = {\text{Rs}}{\text{.}}\,{\text{120}} \cr & {\text{Profit of C}} = 12 \times 12 = {\text{Rs}}{\text{.}}\,{\text{144}} \cr} $$