Question 256878
If father’s age is 5 times that of son at present, and after 4 yrs sum of father’s age and son’s age is 44, what is the present age of son?

F=father's age, S=son's age
F=5*S

5*S+4+S+4=44
6*S+8=44
6*S=36
S=6

Son is presently 6   (5*6+6+8=30+6+8=36+8=44)