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2^5 - 1 - 31...

2^5 is taken beacuse 32= 2^5

ans 31
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Bunuel
A soccer tournament is organized with 32 teams participating, so that every game must end with a winner and the losing team is eliminated from the tournament until there is one team left. If each game is between two teams, what is the total number of games played in the tournament?

A. 5
B. 15
C. 16
D. 31
E. 32

Think of it this way - Say team 1 plays team 2 and defeats it. Team 2 is out.
Then team 1 plays with team 3 and defeats it. Team 3 is out.
and so on... till Team 1 plays with team 32 and defeats it.
So there are a total of 31 games.

Answer (D)
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Bunuel
A soccer tournament is organized with 32 teams participating, so that every game must end with a winner and the losing team is eliminated from the tournament until there is one team left. If each game is between two teams, what is the total number of games played in the tournament?

A. 5
B. 15
C. 16
D. 31
E. 32

In the first round, since 32 games are played, there will be 32/2 = 16 games played. In the second round, there will be 16/2 = 8 games played. In the third round, there will be 8/2 = 4 games played. In the fourth round, there will be 4/2 = 2 games played. In the fifth or final round, there is 1 game played. Thus, the total number of games is:

16 + 8 + 4 + 2 + 1 = 31

Answer: D
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Given number of teams-1
D is right choice
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