David is 18 years older than his daughter Rosy. In 6 years David will be twice as old as Rosy. What is Rosy current age.  Choose the correct choice from the following
A) 12  B) 14  C) 18  D) 24  E) 23

Rationale: now : rosy = x , david = x + 18 in 6 years rosy = x + 6 , david = x + 18 + 6 or 2 ( x + 6 ) x + 24 = 2 x + 12 x = 12 rosy is 12 years old answer : a
Answer: A