One year ago the ratio between Mani's and Rani’s salary was 1 : 2. The ratios of their individual salaries between last year’s and this year’s salaries are 3 : 4 and 5 : 7 respectively. At present the total of their salary is Rs. 6820. The salary of Rani, now is ?
1
Rs.6240
2
Rs. 4620
3
Rs. 6820
4
Rs. 4280
5
Rs. 1650