B = (8000 X 12) : (5000 x 9) = 96000 : 45000 = 32 : 15Total profit = Rs. 2350 ∵ A's share = [32/(32 + 15)] x 2350 = Rs. 1600 B's share = 2350 - 1600 = Rs. 750 Required difference = 1600 - 750 = Rs. 850