Question

The ratio of income and expenditure of a person is 4 : 3. If income is increased by 20% and expenditure is decreased by 10% then what is the percentage increase or decrease in the savings?

Answer 1

The ratio of expenditure and savings is  

3

:

2.

If the income increases by  

15

%

and the savings increases by  

6

%

, then by how much percent should his expenditure increase?