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7 teams compete in a track competition. If there are 20 events in the competition, no event ends in a tie, and no team

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7 teams compete in a track competition. If there are 20 events in the competition, no event ends in a tie, and no team

by BTGmoderatorDC » Fri Feb 10, 2023 4:56 pm

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7 teams compete in a track competition. If there are 20 events in the competition, no event ends in a tie, and no team wins more than 3 events, what is the minimum possible number of teams that won at least one event?

A. 3
B. 4
C. 5
D. 6
E. 7


OA E

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Re: 7 teams compete in a track competition. If there are 20 events in the competition, no event ends in a tie, and no te

by Brent@GMATPrepNow » Tue Feb 14, 2023 8:13 am
BTGmoderatorDC wrote: ↑
Fri Feb 10, 2023 4:56 pm
 7 teams compete in a track competition. If there are 20 events in the competition, no event ends in a tie, and no team wins more than 3 events, what is the minimum possible number of teams that won at least one event?

A. 3
B. 4
C. 5
D. 6
E. 7


OA E

Source: Manhattan Prep
The first thing we should recognize is that, if each of the 7 teams get their maximum of 3 wins each, then the total number of wins is 21.

So, the ONLY WAY to distribute 20 wins among 7 teams is for six teams to get 3 wins and one team to get 2 wins.

For example:
Team 1: 3 wins
Team 2: 3 wins
Team 3: 3 wins
Team 4: 3 wins
Team 5: 3 wins
Team 6: 3 wins
Team 7: 2 wins.

So, the minimum possible number of teams that won at least one event must equal 7

Answer: E

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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