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Solved Examples(Set 1) - Series - Odd Man Out

1. Find the odd man out. $1,3,9,12,19,29$
A. $1$B. $3$
C. $9$D. $12$
Discuss
answer with explanation

Answer: Option D

Explanation:

$12$ is an even number. All other given numbers are odd.
2. Find the odd man out. $1,8,27,64,125,196,216,343$
A. $216$B. $64$
C. $196$D. $1$
Discuss
answer with explanation

Answer: Option C

Explanation:

The pattern is $1^3,2^3,3^3,4^3,5^3,6^3,7^3.$

$196$ is not a perfect cube.

3. Find the odd man out. $15,25,30,51,85,90,115$
A. $51$B. $25$
C. $15$D. $90$
Discuss
answer with explanation

Answer: Option A

Explanation:

All given numbers except $51$ are multiples of $5$
4. Find the odd man out. $24,36,52,72,96$
A. $72$B. $36$
C. $24$D. $52$
Discuss
answer with explanation

Answer: Option D

Explanation:

All given numbers except $52$ are multiples of $6$
5. Find the odd man out. $187,264,386,473,682,781$
A. $682$B. $781$
C. $386$D. $187$
Discuss
answer with explanation

Answer: Option C

Explanation:

In all the given numbers except $386,$ middle digit is the sum of other two digits.

Comments(40)

profileSekhar
2015-06-23 08:50:03 
Q10 can be like 7,13,19,25,29,37,43
7= 6*1+1
13=6*2+1
19=6*3+1
25=6*4+1
29
37=6*6+1
43=6*7+1

Therefore, Odd one out is 29!

How to select the correct answer in the question if two conditions satisfy like aove?
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Often this is a problem with questions on series completion. Sometimes the series will be based on a mathematical sequence and sometimes it can be logical. There can be many interpretations and many right answers based on the approach we select.
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profilesid
2015-04-01 15:01:56 
find the odd man : {12345 , 67890 } ; { 54321 , 09876 } ; { 56789 , 34567 } ;{ 23456, 98765}
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profileAnimesh
2015-05-28 05:25:40 
the answer will be {23456, 98765}
REASON-
 in every pair either the number are in increasing order or decreasing order 
 but,in the last pair 1st one is in increasing order i.e.,2 3 4 5 6
 and 2nd one is in decreasing order i.e.,9 8 7 6 5.
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profileDev
2015-04-06 17:04:26 
ans : {23456, 98765}

In {12345 , 67890},  {54321 , 09876} and  {56789 ,34567},  both left side pattern and right side pattern are in same direction (either in ascending order or descending order).

But in {23456, 98765}, left side pattern is in ascending order whereas right side pattern is in descending order.
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profilePriya Thakur
2015-03-19 05:02:21 
which is odd 253,136,352,460,324,631,244
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profileKarthick
2016-01-12 19:14:44 
253=2+5+3=10
136=1+3+6=10
352=3+5+2=10
460=4+6+0=10
324=3+2+4=09
631=6+3+1=10
244=2+4+4=10

Ans=324
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profiledevd
2015-04-14 02:55:59 
631 is only prime no
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profileDev
2015-04-06 17:07:47 
ans : 324

Sum of digits of 324 is 9 whereas the sum of digits of each of the remaining number is 10
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profilepriya
2015-03-14 11:39:12 
217,730,126,513,342 which is odd
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