A father is now three times as old as his son. Twelve years ago he was six times as old as his son. How old are the son and father now

Answer:
The son is 20 years old and the father is 60 years old.
Explanation:
Now:
Son: 20
Father: 60
20 x 3 = 60
Twelve years ago:
Son: 8
Father: 48
8 x 6 = 48