Atul and Divyanshu are brothers and their age is in ratio 3 ∶ 5, their mother is two times the age of Divyanshu. Two years from now the ratio of ages of their mother and Atul will be 3 ∶ 1. What is the age of Divyanshu 3 years ago?
1
15 years
2
16 years
3
17 years
4
20 years