Amita's father was 38 years old when she was born, while her mother...

Given: Amita's father was 38 years old when she was born. Her mother was 36 years old when her brother was born. Her brother was four years younger than her. Calculation: Let the present age of Amita be $P$ years. So, The age of her father $=(38+P)$ years The age of her brother $=(P-4)$ years The age of her mother $=36+(P-4)=(32+P)$ years Now, the age difference between her parents $=(38+P)-(32+P)=6$ years (\therefore) The difference between the ages of her parents is 6 years.