A certain race

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A certain race

by alex.gellatly » Sat Jul 28, 2012 11:21 pm
For a certain race, 3 teams were allowed to enter 3 members each. A team earned 6-n points whenever one of its members finished in nth places, where 1=<n=<5. there were no ties, disqualifications, or withdrawals. If no team earned more than 6 points, what is the least possible score a team could have earned?
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by Anurag@Gurome » Sat Jul 28, 2012 11:29 pm
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by GMATGuruNY » Sun Jul 29, 2012 3:30 am
alex.gellatly wrote:For a certain race, 3 teams were allowed to enter 3 members each. A team earned 6-n points whenever one of its members finished in nth places, where 1=<n=<5. there were no ties, disqualifications, or withdrawals. If no team earned more than 6 points, what is the least possible score a team could have earned?
0
1
2
3
4
Thanks
nth place = 6-n points.
Thus:
1st place = 6-1 = 5 points.
2nd place = 6-2 = 4 points.
3rd place = 6-3 = 3 points.
4th place = 6-4 = 2 points.
5th place = 6-5 = 1 point.

Let the 3 teams be A, B and C.

To MINIMIZE the number of points that Team C could earn, we must MAXIMIZE the number of points that Teams A and B earn.
The maximum allowed total per team = 6.
It's possible that Team A wins 1st and 5th places (for a total of 6 points) and that Team B wins 2nd and 4th places (for a total of 6 points) -- the MAXIMUM allowed sum for each team.
Thus, the MINIMUM number of points that could be earned by team C -- winning only 3rd place -- is 3.

The correct answer is D.
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