Because the total age of father and daughter was 49 years old three years ago, the total age of father and daughter this year is 49+3+3=55 years old. As we all know, a father is four times as old as a daughter. If the daughter's age is 1, then the father's age is four years old. Father and daughter ***4+ 1=5 copies, which should be 55 years old and one copy should be: 55/(4+1) =1(years old) ... The age of the daughter's father is 16544.