The ratio of the incomes of Chetan and Dinesh is 3:4. The ratio of their expenditures is 5:7. If each of them saves Rs.200, find the incomes of both?  Options:
A) Rs.1200,Rs.1800
B) Rs.1200,Rs.1000
C) Rs.8200,Rs.1600
D) Rs.1200,Rs.1960
E) Rs.1200,Rs.1600
The savings of Chetan and Dinesh are 3x - 5y and 4x - 7y respectively.   3x - 5y = 200 --- (1)   4x - 7y = 200 --- (2)   Multiplying (1) by 7 and (2) by 5 and subtracting the resultant equation (2) from resultant equation (1), we get x = 400.   The incomes of Chetan and Dinesh are 3x = Rs.1200 and 4x = Rs.1600 respectively.   Answer:Rs.1200,Rs.1600
<result>E</result>
The ratio of the incomes of Chetan and Dinesh is 3:4. The ratio of their expenditures is 5:7. If each of them saves Rs.200, find the incomes of both?