SOLUTION: out of 7 men and 4 ladies a committee of 5 is to be formed.In how many ways can this be done so as to include at least 3 ladies?
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Question 1135363: out of 7 men and 4 ladies a committee of 5 is to be formed.In how many ways can this be done so as to include at least 3 ladies?
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
(1) 3 ladies and 2 men: (4 choose 3) times (7 choose 2) -- C(4,3)*C(7,2)
or
(2) 4 ladies and 1 man: (4 choose 4) times (7 choose 1) -- C(4,4)*C(7,1)
Add the two numbers.
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