Aptitude - Odd Man Out and Series - Discussion

Find the odd man out.

4. 

396, 462, 572, 427, 671, 264

[A]. 396
[B]. 427
[C]. 671
[D]. 264

Answer: Option B

Explanation:

In each number except 427, the middle digit is the sum of other two.

Mukesh said: (Feb 25, 2011)  
There is another method to solve this which is that the sum of all the digits of a number except 427 is even.

Girija said: (Sep 12, 2011)  
Answer may also 671. Since its not an even number.

Kiran said: (Oct 6, 2011)  
Adding each individual numbers we get even number except 427 it is odd.

3+9+6=18 so on.

Sankar said: (Jan 7, 2012)  
The options A,C, D are the even numbers because option

A) 396 3+9+6=18
C) 671 6+7+1=14
D) 264 2+6+4=12.

The remaining is option B)427 4+2+7=13 that odd number.

So the answer is B.

Bijit Patnaik said: (Feb 16, 2012)  
Out of the four options 427 is not divisible by 3.

Gopal said: (Mar 1, 2012)  
All the numbers except 427 are multiple of 11.

Sonutalwani said: (Jun 27, 2012)  
3+9+6=18 even.
4+6+2=12 even.
5+7+2=14 even.
4+2+7=13 odd.

Swetha said: (Jul 11, 2012)  
Except 427 every number is divisible by 11.

Ashish said: (Jul 30, 2013)  
Just check the divisibility rule of 2. All digits are divisible by 2 except 671. So why not 671?

Suresh said: (Aug 19, 2013)  
May be @Swetha and @Gopal is right. But @Ashish's answer is not perfect. Because 427 is not divisible by 2. I can't accept the answer given by the internet.

Thulasi said: (Aug 29, 2013)  
Out of the four options 427 is not divisible by 3.

Pavan said: (Jan 27, 2014)  
Sum of first and last number equal to the middle number except 427.

Sravya said: (Jun 3, 2014)  
Sum of all digits are even except 427.

4+2+7=13 odd num.

So 427 is odd one. From the given series.

Aghil said: (Jun 18, 2014)  
The number in the middle or ten's place is the sum of the other two digits.

572 = 5+2 = 7.
462 = 4+2 = 6 so on..

But 427 is not applicable. So it is odd.

Krishna said: (Jul 19, 2014)  
Sum digit is even number in the given option except 427.

Sony said: (Aug 11, 2014)  
Subtract second integer from first integer we get sum.

For ex:-
572 = 7-5 = 2;
462 = 6-4 = 2;
Like this.

Pavan said: (Nov 3, 2014)  
Why not 671 as the other all is evens?

Arnab said: (Dec 12, 2014)  
427 is not divided by 11. Other numbers are divided by 11.

D.Nandhini said: (Mar 2, 2015)  
Answer may also 396 because there is no number having 9 in the middle.

Shubhankar Shukla said: (Jun 8, 2015)  
The sum of all the numbers is divisible by 2 except 427.

Kiran said: (Jun 10, 2015)  
Answer is B. Because 396, 3+9+6=18 671, 6+7+1=14 427, 4+2+7=13 264, 2+6+4=12 the sum of numbers are even except 427 its sum is 13. Which is odd then answer is?

Sudheer Reddy said: (Aug 14, 2015)  
396 (9-3=6) the middle one minus first one we get the last one. The same procedure is done in all numbers but where as in 427 (2-4=-2) we get negative so the answer is 427.

Meenakshi.S said: (Nov 2, 2015)  
You giving good explanation I am learning form IndiaBix thank you so much.

Aditya Somani said: (Apr 13, 2016)  
The answer should be D) 264. All but this number are exactly divisible by 8.

Lakshman said: (Jun 26, 2016)  
396 = 3 + 9 + 6 = 18.
427 = 4 + 2 + 7 = 13.
671 = 6 + 7 + 1 = 14.
264 = 2 + 6 + 4 = 12.

In the above 4 options only 427 is odd number so 427 is correct.

Rinky said: (Jul 11, 2016)  
Every number except 427 is multiple of 11.

Navadurga said: (Oct 8, 2016)  
396 = 3+9+6=18.
427 = 4+3+7=14.
671 = 6+7+1=14.
427 = 4+2+7=13.

In the above options427 is give odd number by adding individual numbers so it is correct.

Souvik Mallick said: (Jan 23, 2017)  
3 + 9 + 6 = 18 even.
4 + 6 + 2 = 12 even.
5 + 7 + 2 = 14 even.
4 + 2 + 7 = 13 odd.

Veera said: (Apr 16, 2017)  
I agree with your method it's simple and fast. Thanks @Souvik Mallick.

Ananya said: (Apr 22, 2017)  
All the other numbers are divisible by 11.

Sooraj said: (Jul 7, 2017)  
Thanks @Ananya.

Eeshan said: (Aug 10, 2017)  
Except 427 all are multiples of 11.

Tahira said: (Aug 17, 2017)  
3+9+6=18.
4+6+2=2.
5+7+2=14.
4+2+7=13odd.

427 is the odd number.

Prathyusha said: (Jul 10, 2018)  
3+6+9
4+2 = 6.
5+2 = 7.

But 4+7 is not equal to 2.
So this 427 is the correct answer.

Mr. Paul said: (Jul 16, 2018)  
Why can't be 671? It is an odd number.

Rohan Kanade said: (Aug 25, 2018)  
All are multiples of 11 except 427.

Ganesh said: (Apr 20, 2019)  
Here the logic is;
3+6 = 9,
2+4 = 6,
5+2 = 7,
6+1 = 7,
2+ 4 = 6.

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