SOLUTION: in how many ways can a committee of 7 be formed if there are 10 dogs and 15 cats to choose from and the committee must consist of at least one cat?
Algebra ->
Permutations
-> SOLUTION: in how many ways can a committee of 7 be formed if there are 10 dogs and 15 cats to choose from and the committee must consist of at least one cat?
Log On
Question 356644: in how many ways can a committee of 7 be formed if there are 10 dogs and 15 cats to choose from and the committee must consist of at least one cat? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! in how many ways can a committee of 7 be formed if there are 10 dogs and 15 cats to choose from and the committee must consist of at least one cat?
------------
# of committees with no cats: 10C7
---
# of committees with no restrictions: 25C7
----
# of committees with at least one cat:
25C7 - 10C7 = 480,580
======================
Cheers,
Stan H.
(