If x < y < z and y-x > 5, where x is an even integer and y and z are odd integers, what is the least possible value of z - x?	Answers:
A) 6  B) 7  C) 8  D) 9  E) 10
We want to minimize z−xz−x, so we need to maximize xx.   Say z=11=oddz=11=odd, then max value of yy will be 9 (as yy is also odd). Now, since y−5&gt;xy−5&gt;x --&gt; 9−5&gt;x9−5&gt;x --&gt; 4&gt;x4&gt;x, then max value of xx is 2 (as xx is even).   Hence, the least possible value of z−xz−x is 11-2= 
<gadget id="calculator">11-2</gadget>
<output>9</output>
9.   Answer: 9.
<result>D</result>
If x < y < z and y-x > 5, where x is an even integer and y and z are odd integers, what is the least possible value of z - x?