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December 20, 2014

December 20, 2014

Posted by **anonymous** on Wednesday, July 21, 2010 at 8:33pm.

a) 3 boys and 4 girls

b) at least one member of each sex?

thank in advance!!

- math -
**Reiny**, Wednesday, July 21, 2010 at 10:47pma) What is C(7,3) x C(6,4) ?

b) with no restriction --- C(13,7)

all girls = C(6,4)

all boys = C(7,3)

exclude the all boys/girs from the total.

- math -
**anonymous**, Wednesday, July 21, 2010 at 11:03pmi did them but i got the wrong answers

for (a), the answer must be 525 and

for (b), the answer must be 1715

i got the rite answer for letter b though, by doing my own method

- math -
**anonymous**, Wednesday, July 21, 2010 at 11:03pmoh and thanks :]

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