If 2 years are subtracted from the age of the Raman, then the ratio of the ages of Raman & Raghu becomes 1 ∶ 3 and If 1 year is added to the age of the Raghu, then the ratio of the ages of Raman & Raghu becomes 1 ∶ 2. Find the sum of ages of Raman and Raghu.
1
9
2
12
3
14
4
18
5
20