SOLUTION: from a group of 40 people, a jury of 12 people is selected. in how many different ways of 12 people be selected

Question 1110224: from a group of 40 people, a jury of 12 people is selected. in how many different ways of 12 people be selected
Found 2 solutions by Alan3354, rothauserc:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
from a group of 40 people, a jury of 12 people is selected. in how many different ways of 12 people be selected
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The 1st pick is 1/40
then 1/39
etc.
--> 40*39*38 ... 30*29
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But picking A, B, C, etc is the same as C, A, B --> divide by 12!
=================
--> 40!/((40-12)!*12!)
= 5,586,853,480 ways
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
calculate the number of combinations for 40 people taken 12 at a time is
:
40C12 = 40! / (12! * (40-12)!) = 5,586,853,480
:

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