The ratio of the number of students in college A and college B in the academic year 2018 was 5 : 12. If the number of students admitted in college A in 2019 increased to 20% from that of 2018, and the number of students admitted in college B increased by 25%, then find the new ratio of the number of students in college A and college B.
1
5 : 2
2
2 : 5
3
3 : 5
4
2 : 3