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Photo
* * * * * 1 votes

A boy playing with his balls


Best Answer bonanova, 11 May 2013 - 09:07 PM

Spoiler for possibly

Go to the full post


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11 replies to this topic

#1 BMAD

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Posted 11 May 2013 - 01:16 AM

A boy has four red balls and eight blue balls.  He arranges his twelve balls randomly, in a ring.  What is the probability that no two red balls are adjacent?

 


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#2 vistaptb

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Posted 11 May 2013 - 04:44 AM

Dat title :P


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#3 dark_magician_92

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Posted 11 May 2013 - 12:27 PM

Are the balls identical? If not, i think this should work, though not sure.

Spoiler for


Edited by dark_magician_92, 11 May 2013 - 12:32 PM.

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#4 BMAD

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Posted 11 May 2013 - 05:06 PM

Are the balls identical? If not, i think this should work, though not sure.

Spoiler for


The balls are identical in size.
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#5 dark_magician_92

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Posted 11 May 2013 - 05:31 PM

 

Are the balls identical? If not, i think this should work, though not sure.

Spoiler for

The balls are identical in size.

 

My answer was wrong, anyhow. WIll give a shot soon.


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#6 Aaryan

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Posted 11 May 2013 - 06:04 PM

I'll be honest - I didn't come to this page to answer a riddle.


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#7 bonanova

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Posted 11 May 2013 - 09:07 PM   Best Answer

Spoiler for possibly


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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#8 BMAD

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Posted 11 May 2013 - 09:39 PM

Spoiler for Generalization

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#9 dark_magician_92

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Posted 12 May 2013 - 03:49 PM

What if the question was, no. of ways you can form a ring with the balls?


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#10 BMAD

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Posted 13 May 2013 - 12:47 AM

What if the question was, no. of ways you can form a ring with the balls?


Are we to take your question that each ball is unique or that there are identical balls with two distinct colors?
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