Exercise :: Odd Man Out and Series  Pick Wrong No.
 Odd Man Out and Series  Odd Man Out
 Odd Man Out and Series  Pick Wrong No.
 Odd Man Out and Series  Missing No.
 Odd Man Out and Series  Find Wrong No.
11.  46080, 3840, 384, 48, 24, 2, 1 

Answer: Option C Explanation: The terms are successively divided by 12, 10, 8, 6, ...etc. So, 24 is wrong, it should be 8 (48/6 = 8). 
12.  6, 13, 18, 25, 30, 37, 40 

Answer: Option D Explanation: The differences between two successive terms from the beginning are 7, 5, 7, 5, 7, 5. So, 40 is wrong. 
13.  36, 54, 18, 27, 9, 18.5, 4.5 

Answer: Option B Explanation:
The terms are alternatively multiplied by 1.5 and divided by 3. However, 18.5 does not satisfy it.

14.  56, 72, 90, 110, 132, 150 

Answer: Option D Explanation: The numbers are 7 x 8, 8 x 9, 9 x 10, 10 x 11, 11 x 12, 12 x 13. So, 150 is wrong. 
15.  25, 36, 49, 81, 121, 169, 225 

Answer: Option A Explanation: The numbers are squares of odd natural numbers, starting from 5 up to 15. So, 36 is wrong. 