The radius of the two circular fields is in the ratio 4: 10 the area of the second field is what percent greater than the area of the first?	Options:
A) 72 %  B) 96 %  C) 94 %  D) 84 %  E) 82 %

Rationale: r = 4 ï € r 2 = 16 r = 10 ï € r 2 = 100 100 ï € â € “ 84 ï € 100 - - - - ? = > 84 % . answer : d
Answer: D