Five years ago, the age of Dave was 5 times that of his daughter. After 5 years, his age will be 3 times that of his daughter. After how many years, will he be twice as old as his daughter?
1
15
2
25
3
30
4
35
5
None of the above
Five years ago, the age of Dave was 5 times that of his daughter. After 5 years, his age will be 3 times that of his daughter. After how many years, will he be twice as old as his daughter?