Arun's father is exactly 9 years elder to his mother and Arun is exactly 9 years elder to his sister. The age of Arun's mother is a two-digit number (in years) which has the same pair of digits as are there in Arun's father's age, while, the age of Arun's sister is a two-digit number (in years) which has the same pair of digits as are there in Arun's age. If Arun's age is 37.5% of his mother's age, then find the sum of the ages (in years) of all four members of the family.