The ratio of incomes of two persons is 9 : 7 and the ratio of their expenditures is 4 : 3. If each of them saves ₹2000 per month, find their monthly incomes.

मान लीजिए आय 9x, 7x है। बचत = आय - खर्च। (9x - 2000) / (7x - 2000) = 4/3 => 27x - 6000 = 28x - 8000 => x = 2000। आय: 18000 और 14000।