Income and expenditure of a person are in the ratio 4 : 3. If the income of the person is Rs. 20000, then find his savings?  Choose one.
A) rs . 3600  B) rs . 3603  C) rs . 3639  D) rs . 3632  E) rs . 5000

Rationale: "let the income and the expenditure of the person be rs . 4 x and rs . 3 x respectively . income , 4 x = 20000 = > x = 5000 savings = income - expenditure = 4 x - 3 x = x so , savings = rs . 5000 answer : e"
Answer: E