If the sides of a cube are in the ratio 5:3. What is the ratio of their diagonals?	Answers:  A) 5 : 9  B) 9 : 3  C) 5 : 4  D) 3 : 5  E) 5 : 3

Rationale: explanation : diagonal of a cube = a √ 3 where a is side a 1 : a 2 = 5 : 3 d 1 : d 2 = 5 : 3 where √ 3 cancelled both side answer : e
Answer: E