(5) 3 years ago,Daughter’s age = 12x yearsSon’s age = 13x years ∴Raj’s present age =12x+13x+3+6 =(25x+9)years ∴Raj’s wife’s present age =(25x+9)–5years =(25x+4)years According to the question, ∴25x+4=2(12x+3) ⇒25x–24x=6–4 ⇒ x = 2 ∴Son’s present age =13x+3 =(13×2+3)years = 29 years