If 3<x<6<y<9, then what is the greatest possible positive integer difference of x and y?
Pick
A) 3	B) 4	C) 5	D) 6	E) 7
3 &lt; x &lt; 6 &lt; y &lt; 9;   3 &lt; x   y &lt; 9   3 + y &lt; x + 9   y - x &lt; 6.   Positive integer difference is 5 (for example y = 8.5 and x = 3.5)   Answer: 5.
<result>C</result>
If 3<x<6<y<9, then what is the greatest possible positive integer difference of x and y?