Question

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 increases?​

Answer 1

Answer:

21 % increase in expenditure

Step-by-step explanation:

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 increases?​

Let sat Expenditure = 300x

Then saving = 200x

Income = Expenditure + saving = 300x + 200x = 500x

income increases by 15%   = (15/100) * 500x = 75x

Income after increase = 500x +75x = 575x

Saving increased by 6 % = (6/100) * 200x  = 12x

New saving = 212x

New expenditure = 575x - 212x = 363x

Old expenditure = 300x

Expenditure increased by 363x - 300x = 63x

% increase in expenditure = (63x/300x) * 100 = 21 %

21 % increase in expenditure