The sum of the present ages of A and B is 80 years. If the ratio of their ages after 8 years will be 17 ∶ 15, then the present age of B is:
1
35 years
2
55 years
3
45 years
4
37 years
The sum of the present ages of A and B is 80 years. If the ratio of their ages after 8 years will be 17 ∶ 15, then the present age of B is: