help, permutations | Mathematics | Page 1

ancient grotto Feb 16, 2024, 2:47 PM

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i’ve got the answer and equation, help me understand please

dusky jacinthBOT Feb 16, 2024, 2:47 PM

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ancient grotto Feb 16, 2024, 2:50 PM

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here’s is what i’ve figured out so far, i’m just not sure what’s the 6C4 is for, this may be a puzzle for you to understand what i mean by the colors but you guys like puzzles right

serene drum Feb 16, 2024, 3:48 PM

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for the first one

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so see like this

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in how mnay ways can i arrange 3 girls

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and in how many places i can put then

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then use stars and bars for the second condition

ancient grotto Feb 16, 2024, 4:07 PM

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serene drum then use stars and bars for the second condition

im not getting what you’re saying, stars and bars?

serene drum Feb 16, 2024, 4:07 PM

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its a principle

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https://brilliant.org/wiki/integer-equations-star-and-bars/

Integer Equations - Stars and Bars | Brilliant Math & Science Wiki

A frequently occurring problem in combinatorics arises when counting the number of ways to group identical objects, such as placing indistinguishable balls into labelled urns. We discuss a combinatorial counting technique known as stars and bars or balls and urns to solve these problems, where the indistinguishable objects are represented by sta...

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check this out

ancient grotto Feb 16, 2024, 4:08 PM

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i mean, if you got it, can you tell where the 6 and 4 comes from

serene drum Feb 16, 2024, 4:08 PM

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hmm i cant solve it right now

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but gimme me a few hours

ancient grotto Feb 17, 2024, 3:01 AM

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ok

alpine quail Feb 17, 2024, 3:26 AM

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If you look at the A's as dividers, there are 6 places where you could put 4 groups of B's.
_A_A_A_A_A_

ancient grotto Feb 17, 2024, 6:20 AM

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alpine quail If you look at the A's as dividers, there are 6 places where you could put 4 gro...

i guess that makes sense, thanks

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.close

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