His maternal grandmother is younger than his father
A and B are friends and B is 2 years younger than A. A’s father D is twice as old as A and B is twice as his sister C. The age of D and C differ by 40 years. What are the ages of ‘A’ and ‘B’?
Your father is twice the age of your younger sister, who is five year younger then you. If you happen to be 30, how old is your dad?
