IBPS PO Prelims Model Paper 3 with solutions

A and B started a business. B’s investment was 2.5 times that of A. The respective ratio between the time period for which A invested and that for which B invested was 3 : 1. If the total investment made by A and B together was Rs. 28,000 and the annual profit earned was Rs. 2500 less than A’s investment, what was the difference between A’s share and B’s share in the annual profit?