How Many Teams of 7 Players
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How Many Teams of 7 Players

[From: ] [author: ] [Date: 12-06-12] [Hit: ]
-i take it that **one** team is to be chosen for 7 positions, and that apart from A,B,C,D,from A,......
How many teams of 7 players can be chosen from 17 candidates if A, B, C, D are the only candidates for 3 positions and can play no other position?

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i take it that **one** team is to be chosen for 7 positions, and that apart from A,B,C,D, everyone can play in any of 6 positions

from A,B,C,D, we can choose only 3 in 4c3 = 4 ways
from the remaining 13, we choose 4 in 13c4 = 715 ways
ans: 4*715 = 2860 <-----
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