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 place, 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?
A.0
B.1
C.2
D.3
E.4
答案是D
Q18:
If k is a positive integer, is k the square of an integer?
(1)k is divisible by 4.
(2) k is divisible by exactly 4 different prime numbers.
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 place, 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?
A.0
B.1
C.2
D.3
E.4
答案是D
because 1 ≤ n ≤ 5. 三个队得分总数是5+4+3+2+1=15, 问题是求最小的分数, 所以可以假设其他两个队得最高分,即6 ..
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发表于 2008-10-11 22:37:00
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