Calculus
posted by Timofey .
A club has 45 members and its membership committee has 7 members. How many different membership committees are possible?
I keep getting 1.6336632e10, but I know its not right somehow

The order of selection in a committee is usually not important.
So we are "choosing" groups of 7 from 45
which is C(45,7)
or 45!/(7!38!) = 453796620
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