Question

rame father age is three times rame age after 12 years his father age will be twice his age find their present age

Answer 1

let Ram's present age be x, so his father's age will be 3x
after 12 years their age will be, x+12 and 3x+12, resp.,
as given, (x+12)2=(3x+12), 2 is multiplied to RAM's age to balance the equation.
ram's present age is 12 years.

Answer 2

Let Rame's age be x
   Then his father's age = 3x

A/q,
       2 (12+x) = 3x+12
   ⇒ 24+2x = 3x+12
   ⇒ 24-12 = 3x-2x
   ⇒ 12 = x

∴ Rame's present age = 12 
   and his father's current age = 12*3 = 36