সাধারণ গণিত→অধ্যায় ০১ঃ পাটি গণিত→অনুপাত এবং সমানুপাত

The ratio of the incomes of A and B is 5 : 4 and the ratio of their expenditures is 3 : 2. If at the end of the year, each saves Tk. 1600, then the income of A is :