Numerical reasoning number sequence

numerical reasoning test Psychometric test
New answer on Mar 21, 2023
5 Answers
asked on Mar 18, 2023

Going through psychometric test exercises and came accrpss this sequence I cant make sense of. Answer is below. Can anyone explain? 

The number sequence I have is: 

3 ? 4 6 4

What is the missing number and why? 

Possible answers:

(a) -1 (b) 0 (c )1 (d) 2




Also, would be great to have any practice tips for these if anyone has any recommendation! The book I'm using only has answers but no explanations…



answer: d

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Best answer
replied on Mar 18, 2023
Bain | EY-Parthenon | Roland Berger |Former Head Recruiter | Market Sizing

Sorry, this is non-sense. The problem with these kind of sequences is that if they are not long enough, one is able to find ways to fit in different numbers. 

I was trying to create an answer, but I can find ways for it to be c) and for it to be d). And I can find an absurd number of potential sequences after the 5th number (meaning that there's a significant ammount of potential different rules for this sequence).

I wish I could have some good material to recommend to you, but i don't.

In any case, just move on from that question - it's badly written. You need a 6th number in the sequence to narrow down the potential number of rules that could be used.

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Content Creator
replied on Mar 21, 2023
Ex McKinsey EM & interviewer (5 yrs) USA & UK| Coached / interviewed 200 +|Free 15 min intro| Stanford MBA|Non-trad

This could be all sorts of numbers. I would move on and try one of the GMAT prep books which hopefully has better questions

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Content Creator
updated an answer on Mar 19, 2023
Ex-Bain and interviewer for 7+ years | >95% success rate | mentor and coach for 6+ years

Hi Philippine,

I think this is an interesting question that may be relevant for many people. I would be happy to share my thoughts on it:

  • First of all, while I would have also guessed that answer D would be the correct one (based on the logic x2/3 - +2 - +2 - x2/3), I feel this might not be a meaningful exercise, especially given the sequence is too short to identify a logic that goes across three items.
  • Moreover, I would advise you to primarily use the reasoning part of the official GMAT preparation material to practice numerical, verbal, and abstract reasoning.

If you would like a more detailed discussion on how to best prepare for your upcoming interviews, please don't hesitate to contact me directly.




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replied on Mar 19, 2023
McKinsey EM | Top MBB Coach | >70% Success Rate | Free Introductory Calls

Agree with what has been said before. Not sure in which context you found this question, but have hardly come across this question format in consulting context.

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Content Creator
replied on Mar 18, 2023
MBB | 100% personal interview success rate (8/8) and 95% candidate success rate | Personalized interview prep

Hi there,

I totally agree with Pedro.

I highly highly recommend you use resources that provide explanations for the answer!

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Pedro gave the best answer


Bain | EY-Parthenon | Roland Berger |Former Head Recruiter | Market Sizing
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