Income and expenditure of a person are in the ratio 7 : 6. If the income of the person is Rs. 21000, then find his savings? Pick one:
A) rs . 3600
B) rs . 3603
C) rs . 3639
D) rs . 3000
E) rs . 3602

Rationale: "let the income and the expenditure of the person be rs . 7 x and rs . 6 x respectively . income , 7 x = 21000 = > x = 3000 savings = income - expenditure = 7 x - 6 x = x so , savings = rs . 3000 answer : d"
Answer: D