David is 12 years older than his daughter Rosy. In 4 years David will be twice as old as Rosy. What is Rosy current age.
Answers: A) 9 B) 10 C) 11 D) 8 E) 12
Now: Rosy = x, 8avid =x+12   In 4 years Rosy = x+4, 8avid = x+12+4 or 2(x+4)   x+16= 2x+8   x= 8   Rosy is 8 years old   Answer : 8
<result>D</result>
David is 12 years older than his daughter Rosy. In 4 years David will be twice as old as Rosy. What is Rosy current age.