Postal or Sorting Assistants Model Paper 5 With Solutions

(a) Son’s age = 6 yrs.
Father’s age = 30 yrs.
Let ‘x’ be the yr. after which father will be 4 times as old as his son.
According to question
30 + x = 4(6+x) = 30+x=24 + 4x => 6 = 3x. x=2.
Hence, require year is 2 yrs.