# 2, 3, 9, 19, 36, 62, 92 - Which number is the odd one out? [closed]

Which is the odd one out from the following:

2, 3, 9, 19, 36, 62, 92

1. 3
2. 9
3. 19
4. 36

I did not create this puzzle myself. It was shared by someone in my exam preparation group on Telegram.

• Is this a puzzle that you created yourself? If not, please edit in where it came from - questions without attribution are subject to closure. Commented Sep 19, 2020 at 15:41
• One can come up with practically any answer to questions like this. E.g. use Lagrange interpolation to construct a one-variable polynomial that takes these values except for the one you want to exclude at integers 1 through 6. To be able to provide a more helpful answer, it would be necessary to disclose the assumed background. Commented Sep 19, 2020 at 16:46
• Do you have any more specific information on where this comes from? Is it part of some ongoing exam or competition?
– Deusovi
Commented Sep 19, 2020 at 18:05
• I am just wondering is this supposed to be a sequence?
– PDT
Commented Sep 19, 2020 at 18:23
• Yeah this is supposed to be part of logical reasoning sections. Very common in indian examinations. U can easily see these type of questions in exams for MBA like iift , nmat , snap ect.U can look for related questions for attribution on these kind of problems Commented Sep 19, 2020 at 18:47

19, because it has an even number of syllables.

I think it is 19

Because

It is the odd one out because it contains the only digit that is not shared by the other numbers in the list: which is 1. The rule is that all the digits of every number is shared by at least one digit from another number in the list.

• Good observation, I like this answer
– DrD
Commented Sep 20, 2020 at 10:58

Unsure because there are so many other valid answers supplied, but my guess is

3

Because

It is the only number in the sequence where the sums of the factors is a perfect square.

another shot in random direction


02 = 0000010
03 = 0000011
09 = 0001001
19 = 0010011
36 = 0100100
62 = 0111110
92 = 1011100


62 is the only one with binary symmetry in the range

• Did you mean to spoiler the block quote with the list?
– TMK
Commented Apr 9, 2022 at 2:19
• @TMK thanks ! I spoiled it meanwhile. Commented Apr 10, 2022 at 0:09

The series is wrong and the wrong number is 3,it should be 4

2 4 9 19 36 62 99 +2 +5 +10 +17 +26 +37

The numbers which are being added in series are getting increased by odd no. Ex 2+3 is 5 Then 5+5 is 10 Then 10+7 is 17 Then 17+9 is 26 Then 26+11 is 37

• Beyond changing 3 to 4, you've changed the last number from 92 to 99. Commented Apr 8, 2022 at 21:29
• You cannot be certain that the author of the puzzle made a mistake, so this answer is not valid. If you believe the author made a mistake, you can ask them in the comments (once you have enough reputation). Commented Apr 8, 2022 at 23:26
• I've the ques in my ssc book and it's 99, please ask him to recheck the ques again,if u can provide ur Gmail I'd i can send u the question Commented Apr 9, 2022 at 14:46
• Maybe the puzzle in your book is a different puzzle Commented Apr 9, 2022 at 19:36