急求一道prep上的题

hwhhs · 发表于 2006-7-2 01:11:00

Set S consists of five consecutive integers, and set T consists of seven consecutive integers. Is the median of the numbers in set S equal to the median of the numbers in set T?

(1) The median of the numbers in set S is 0;

(2) The sum of the numbers in set S is equal to the sum of the numbers in set T;

Answer: C

我觉得光有B就可以了，因为对于连续几个整数的median 应该就等于他们的sum/个数吧?

sunshinerab · 发表于 2006-7-2 03:21:00

C is correct.
（1）单独不成立
(2)设S 的median 为X，设T的median为Y
5X=7Y，推出
X=7,Y=5;X=0，Y=0两种情况
（1）+（2）成立。

急求一道prep上的题

急求一道prep上的题

所属分类: GMAT考试

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