The ratio of incomes of A and B is 5 : 4 and the ratio of their expenditures is 3 : 2. If each saves ₹800, find the income of A.

मान लीजिए आय 5x, 4x है। (5x-800)/(4x-800) = 3/2 => 10x - 1600 = 12x - 2400 => 2x = 800 => x = 400। A की आय = 5 * 400 = ₹2000।