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# League Results Team A B

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Director
Joined: 17 Oct 2005
Posts: 938
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League Results Team A B  [#permalink]  16 Nov 2005, 17:38
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League Results

Team A B C D E X
Number of Games Won 4 7 9 2 2

According to the incomplete table above, if each of the 6 teams in the league played each of the other teams exactly twice and there were no ties, how many games did team X win? (Only 2 teams play in a game)

Can someone explain this step by step? thanks
Director
Joined: 17 Oct 2005
Posts: 938
Followers: 1

Kudos [?]: 68 [0], given: 0

sorry that didnt come out right . here is what it should look like.

Team Number of Games Won

A 4
B 7
C 9
D 2
E 2
X
SVP
Joined: 05 Apr 2005
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Re: Combinations PS [#permalink]  16 Nov 2005, 18:01
total game played = 30
a-b=2
a-c=2
a-d=2
a-e=2
a-x=2
total game a played = 10

b-c = 2
b-d = 2
b-e = 2
b-x = 2
total = 8

c-d=2
c-e=2
c-x=2
total = 6

d-e = 2
d-x=2
total = 4

e-x=2
total = 2.

so all total = 30

x win = 30 -4-7-9-2-2 =6
Re: Combinations PS   [#permalink] 16 Nov 2005, 18:01
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