A father is three times as old as his son. After fifteen years the father will be twice as old as his son’s age at that time . Hence the father’s present age is —
- 36
- 42
- 45
- 48
Answer: 45
Explanation: Let, Son = x
Father = 3x
3x + 15 = 2 ( x + 15)
x = 30 – 15 = 15
3x = 45