Quote:
Originally Posted by DARISC
"when added up equal a known total"
Exactly?
Equal to or greater than?
If so, then by no more than a certain #/%?
Seems it would be the exception rather than the rule that any pair of numbers would equal a known total, no?
Wish I was good at math.  |
Yes... the exact total is the amount she paid from her business checking
Quote:
Originally Posted by rick-l
So the number of possible sums is combin(25,1) + combin(25,2) + combin(25,3) + ... combin(25,25)?
That is only 33.5 million possible sums. you can do that in your head easy.
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Yes, but since we know the target sum, it seems like there is a minimum number of the set required to add up to at least that sum. So, if you add up the set from largest to smallest you can figure out that it will take at least that many members of the set to equal the total. Oh well... I know what i mean!
