Question

13) The average age of father, mother, son and daughter
is 16 years. Father is 5 times as old as the son and mother
is 6 times as old as the daughter. After 3 years from now,
mother will be thrice as old as the son. What is the present
age of the father?
A) 50 years
B) 45 years
- 35 years
D) 30 years​

Answer 1

Answer:

F+S+M+D= 64

●F=5.S

M=6D

M+3=3(S+3)

M=3S+6=6D

therfore D=S+2/2

we get all the relations in terms of Son

hence adding we get 5S+(3s+6)+ (s+2)/2+s=64

19s=114

sons age is 6 yrs hence F=6×son=30