Seats for Economics, Polity, and Fashion Education in a University are in the ratio of 13 : 7 : 3. In the year 2022, a total of 690 students took enrollment in the university. Further 40 new students joined the Fashion Education course. What will be the final ratio among the students?
1
39 : 21 : 13
2
21 : 21 : 18
3
36 : 21 : 17
4
39 : 21 : 15