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#1 Re: Help Me ! » Combinatorics - How to Find an Unknown » 2008-09-01 22:53:30

So there's no way you know of to solve the question using theory or formulas involving combinatorics itself?

#2 Help Me ! » Combinatorics - How to Find an Unknown » 2008-09-01 19:46:52

yakuza52
Replies: 3

I've been doing some work on combinatorics recently, including combinations and permutations.

My question relates to a combination problem where the number of objects to be picked and the total number of possible combinations are known, but not the number of objects that are chosen from.

For example, if three objects are chosen from a total of n objects and there are 56 possible combinations, what is the value of n?

I know the answer but I was just wondering if anyone would be able to discuss the methodology used to figure that value out.

Thanks in advance,

Ben

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