# Aptitude - Odd Man Out and Series - Discussion

### Discussion :: Odd Man Out and Series - Pick Wrong No. (Q.No.2)

Find out the wrong number in the given sequence of numbers.

2.

22, 33, 66, 99, 121, 279, 594

 [A]. 33 [B]. 121 [C]. 279 [D]. 594

Explanation:

Each of the number except 279 is a multiple of 11.

 Sankar Prasanna Ghosh said: (Sep 25, 2011) If we consider (022, 033, 066, 099, 121, 279, 594) , then we see middle term sum of (1st & 3rd) term. Except 279.

 Sonutalwani said: (Jun 29, 2012) 11*2=22. 11*3=33. 11*6=66. 11*9=99. 11*11=121. 11*54=594. 279 is not divided by 11.

 Srinu said: (Dec 25, 2014) Is there any reason to multiply with 11? If we multiply with 3 means the answer is 121.

 Sureshkumar said: (Jan 21, 2015) Don't confused if add 1st and 3rd number we get middle number. So 279 is except from that then answer is 279.

 Mit Parikh said: (Jul 14, 2015) Very nice.

 Aanchal said: (Jan 6, 2016) From 3rd no, every number is three times previous-to-previous number. Eg: 66 is thrice 22, 99 is thrice 33. So, answer could also be 121 (198 should come instead).

 Vishal said: (Aug 26, 2016) But if u do like this : 22 * 3 = 66, 33 * 3 = 99, 66 * 3 = 198 but in problem 121 (Ans), 198 * 3 = 594, 99 * 3 = 279.

 Kartik said: (Mar 5, 2017) 11, 33, 36, 108, 110, 333. Find the odd man out.

 Mahesh said: (Jul 14, 2017) Answer is 11. 33 = 3*11 36= 3*12 108= 3*36 110=11*10 333=3*111. Only 11 is a prime number.

 Harikrishna said: (May 16, 2018) The simple solution is; 11*2=22, 11*3=33, 11*6=66, 11*9=99, 11*11=121, 11*54=594. (eg:11*54= 594(take the middle number out (5-*9*-4)of any three digit answer then you can find the same number which is multiplied by the number 11)). the same way other can be done.

 Urman said: (Jun 16, 2018) 11*2=22. 11*3=33. 11*6=66. 11*9=99. 11*11=121. 11*54=594. 279 is not divided by 11.

 Nandini said: (Oct 5, 2018) @Kartika answer will be 110. 11*3=33. 33+3=36. 36*3=108. 108+3=111(110 which is wrong). 111*3=333.