

GRE Question of the Day (January 10)Math [m]A=[fraction]PId^2/x[/fraction][/m] If the formula above gives the area A of a circular region in terms of its diameter d, then x= (A) [m][fraction]1/4[/fraction][/m] (B) [m][fraction]1/2[/fraction][/m] (C) 1 (D) 2 (E) 4 Question Discussion & Explanation 
[0] Comments to this Article