Aptitude - Odd Man Out and Series - Discussion

Find out the wrong number in the series.

6. 

19, 26, 33, 46, 59, 74, 91

[A]. 26
[B]. 33
[C]. 46
[D]. 59
[E]. 74

Answer: Option B

Explanation:

Go on adding 7, 9, 11, 13, 15, 17 respectively to obtain the next number.

So, 33 is wrong. It must be 35


Janhavi said: (Aug 24, 2011)  
How. Am not getting it.

Shanu said: (Sep 23, 2011)  
19+7=26,26+7=33, the given series is 7,9,11,13...but 7 is repeating twice in the given sol..it's wrong

Lavanya said: (Jan 10, 2012)  
19+7=26, 26+9=35 but in given series they give 33 so its wrong so 33 is oddman out.

Rathi said: (Apr 19, 2012)  
19 + 7 = 26
26 + 9 = 35
35 + 11 = 46
46 + 13 = 59
59 + 15 = 74
74 + 17 = 91

In this series 33 is given instead of 35, So 33 is wrong

Ayaush said: (Sep 15, 2012)  
19 + 7 = 26
26 + 7 = 33
33 + 13 = 46
46 + 13 = 59
59 + 15 = 74
74 + 15 =89

so why 91 is not false???

Rintu said: (Jun 20, 2013)  
19+7 = 26.
26+9 = 35.
Instead of 35, it given 33. So it is wrong.
35+11 = 46.
46+13 = 59.
59+15 = 74.

Adil Maqbool said: (Aug 24, 2013)  
@Ayaush.

There should be having some regularity in the series. Just adding 7 twice & dn suddenly jumping to add 13 twice & dn 15 twice doesn't make any sense/regularity.

So 91 can't be taken as answer but 33 is the correct answer.

Hamsa said: (Apr 12, 2015)  
19-10 = 9 perfect sqr (3*3).
26-10 = 16 perfect sqr (4*4).
33-10 = 13 not a perfect sqr.
46-10 = 36 perfect sqr (6*6).
59-10 = 49 perfect sqr (7*7).

So 33 is odd.

Aadhithyaa said: (Jun 21, 2015)  
Hi, @Hamsa's comment:

I believe 33-10=23 but you have given 33-10=13.

Kamoo said: (Jun 28, 2016)  
33 not the correct answer.

Lakshu said: (Aug 15, 2017)  
I hope 33 is not the correct answer. Because subtract the digits we get the series of 7, 7, 13, 15, 17.

So 15 is not a prime number. 74 should not be there. Please explain.

Mukesh said: (Sep 11, 2017)  
Ans is 74.

26-19=07
33-26=07
46-33=13
59-46=13
74-59=15
91-74=17
So ans is 74.

Jainik said: (Jul 12, 2019)  
(19+33)÷2= 26
(33+59)÷2= 46
(59+91)÷2 = 75
So, 74 is the wrong term.

Mohamed Abdul Raseeth said: (Aug 29, 2021)  
@Jainik.

Nice, Thanks for solving.

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