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There are seven team and each team has to play with three other teams

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There are seven team and each team has to play with three other teams  [#permalink]

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New post 27 Oct 2018, 09:18
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A
B
C
D
E

Difficulty:

  75% (hard)

Question Stats:

21% (01:26) correct 79% (01:39) wrong based on 24 sessions

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There are seven team and each team has to play with three other teams in the first round of tournament. What is the minimum number of matches that can happen in the first round?
A) 10
B) 11
C) 12
D) 21
E) 22

Weekly Quant Quiz #6 Question No 6


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WE: Business Development (Energy and Utilities)
Premium Member CAT Tests
There are seven team and each team has to play with three other teams  [#permalink]

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New post 27 Oct 2018, 09:19
Each match is between two teams.. say A B C D E F G.. so for every match two alphabets will appear.. we need each alphabet thrice (three matches per team).. 7*3 = 21 .. but each match has two alphabets so total appearance of alphabets can only be even.. 21 is not possible but 22 is possible (with 11 matches).

Answer = 11 (B)
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There are seven team and each team has to play with three other teams &nbs [#permalink] 27 Oct 2018, 09:19
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There are seven team and each team has to play with three other teams

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