Ratio of the equivalent capitals of A, B and C for 1 month = (16000 × 6 + 2000 × 6) : (12000× 6) : (18000 × 6) = (96 + 120) : 72 : 108 = 216 : 72 : 108 = 6 : 2 : 3 Sum of the terms of ratio= 6 + 2 + 3 = 11 If the total annual profit be Rs.x, then According to the question, Difference between the shares of A and B = Rs. 6000 ⇒