The sum of the present ages of father and son is 60 years. Five years ago, the age of the father was four times that of the son, then what will be the age of the son now?
1
10
2
12
3
15
4
20
The sum of the present ages of father and son is 60 years. Five years ago, the age of the father was four times that of the son, then what will be the age of the son now?