Find the odd man out 3, 8, 38, 78, 158	Options:
A) 28  B) 8  C) 128  D) 18  E) 158
3 x 2 + 2 = 8   8 x 2 + 2 =18   18 x 2 + 2 =38   38 x 2 + 2 =78   ANSWER:18
<result>D</result>
Find the odd man out 3, 8, 38, 78, 158