http://mathforum.org/kb List of forum topics en http://mathforum.org/kb/thread.jspa?messageID=7677377&tstart=0#7677377 >> I've never tried doing 250!/(30!*220!) in Excel

=GAMMALN(250+1)-GAMMALN(30+1)-GAMMALN(220+1)
gives]]> Feb 25, 2012 11:52:29 AM Feb 25, 2012 11:52:29 AM wouter.meeussen@telenet.be 0 http://mathforum.org/kb/thread.jspa?messageID=7676334&tstart=0#7676334 Hardya,
It seems you have 250 locations, and need to choose 30 of them for A, while the other 220 automatically go to B.
If that's a]]> Feb 24, 2012 7:30:45 AM Feb 24, 2012 7:30:45 AM benb 1 http://mathforum.org/kb/thread.jspa?messageID=7676301&tstart=0#7676301
Amongst other things I want to know a]]> Feb 24, 2012 6:09:10 AM Feb 24, 2012 6:12:46 AM hardya 2