The incomes of A and B are in the ratio 3 : 2 and their expenditure are in ratio 5 : 3. If each saves Rs. 1000, then, A's income can be:

3x-5y=1000.....a
2x-3y=1000......b

2a+3b,
6x-6x-10y+9y=2000-3000
Or, -y=-1000
Or, y=1000
b no,
3x-5*1000=1000
Or,3x=6000
Or,x=2000
A's income=2000*3=6000

Let, the expenditure of A and B is 5x,
3x.
So,the income of A is 5x+1000
ATQ,
5x+1000/3x+1000=3/2
or, 10x+ 2000=9x+3000
or, 10x-9x=3000-2000
or, x=1000
So, the income of A is 5x+1000=5*1000+1000=Rs.6000 (Ans)

In the year 2015, the price of Article A is 17% more than the price of Article B. In the next year, the price of Article A is 30% more than the price of Article B. If from the year 2015 to 2016, the price of A has increased by 40%, then by what % , the price of B has increased ?

The ratio of incomes of 2 persons A and B is 9:7 and the ratio of their expenditures is 4:3. If eacv of them saves ruppes. 2200 per month, find their monthly incomes