- #1
Mrencko
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Homework Statement
the administration council of one industry is composed by 7 people 4 mens and 3 womens.
an election its hapening to vote chairman and secretary, if all members of the council are candidates obtain the follow
a) just mens take positions
b) a chairwoman elected
C) at least one woman is elected[/B]
Homework Equations
The Attempt at a Solution
so far my work its the next
i ve determined that there is 42 forms of people take positions, those forms are under 21 pairs of chairman and secretary, this because for the a and c, order is meaningless, just b requieres order,
well my calculations end here: there are 3 pairs made of entirely womans and 6 pairs of entirely mens,
so i supose there is 12 pairs of mixed positions.
acording to my calculations
a) 6/21= 28% of just mens being elected
c) 3+12 the pairs of 3 womens and the mixed ones so 15/21=71% of at least a woman being elected
i don't know if i am right, that's the reason i am asking for help, also i don't know how to calculate de b)