Number Pattern: 121 --> 111211 --> 311221

  • Context: Undergrad 
  • Thread starter Thread starter lahirurana
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Discussion Overview

The discussion revolves around a number pattern identified as a Look-and-say sequence, specifically examining the transition from 121 to 111211 to 311221. Participants explore how to derive the next number in the sequence and seek clarification on the reasoning behind the pattern.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • Some participants describe the process of interpreting the sequence, noting that 121 can be read as "one one, one two, one one," leading to the next number.
  • One participant expresses confusion about the explanation and requests further clarification on how the sequence is derived.
  • Another participant suggests that the next number in the sequence could be 211213, seeking validation for this interpretation.
  • There are repeated inquiries about the origin of such problems, with some participants humorously questioning if they are related to job applications at Google.

Areas of Agreement / Disagreement

Participants generally agree on the nature of the Look-and-say sequence but express differing levels of understanding regarding the derivation of subsequent numbers. The proposed next number, 211213, is accepted by some but not universally confirmed.

Contextual Notes

Some participants indicate uncertainty in their understanding of the sequence, and there are unresolved questions about the clarity of the explanation provided.

Who May Find This Useful

Individuals interested in number patterns, mathematical sequences, or logic puzzles may find this discussion relevant.

lahirurana
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upload_2018-10-29_16-56-19.jpeg

Do anyone have any clue how to get the answer??
 

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121 → One one, one two, one one → Three ones, one two, two ones.
 
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WHere are these IQ test problems coming from? or are you applying for a job at Google?
 
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mjc123 said:
121 → One one, one two, one one → Three ones, one two, two ones.
Can please explain? I didn’t got it.
 
jedishrfu said:
WHere are these IQ test problems coming from? or are you applying for a job at Google?
Lol nope. Not in google :)
 
lahirurana said:
Can please explain? I didn’t got it.
I think i got it after staring at your answer for few minutes :) Answer is 211213? Isn’t it?
 
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lahirurana said:
I think i got it after staring at your answer for few minutes :) Answer is 211213? Isn’t it?
Yes.
 
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