If 3<x<6<y<9, then what is the greatest possible positive integer difference of x and y?	Answers.
A) 3 B) 4 C) 5 D) 6 E) 7

Rationale: "3 < x < 6 < y < 9 ; 3 < x y < 9 3 + y < x + 9 y - x < 6 . positive integer difference is 5 ( for example y = 8.5 and x = 3.5 ) answer : c ."
Answer: C