What is the ratio between perimeters of two squares one having 2 times the diagonal then the other?	Options
A) 3 : 8 B) 3 : 6 C) 3 : 7 D) 2 : 1 E) 3 : 3

Rationale: "d = 2 d d = d a √ 2 = 2 d a √ 2 = d a = 2 d / √ 2 a = d / √ 2 = > 2 : 1 answer : d"
Answer: D