作者CSL (原谅我的无能为力)
看板GRE_Verbal
标题[讨论]问两题数学
时间Thu Oct 26 22:43:24 2006
1.If y is the average(arithmetic mean) of
n consecutive positive integers, n>1
what is the sum of the greatest and least of
these integers?
答案是2y
2. S is a set of n consecutive integers
The mean of S The median of S
答案是C一样大
谢谢!!
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1F：推 Senkousha:y-n ... y-1 y y+1 ... y+n 10/26 22:59
2F：推 ohb:这种题目我觉得就代数字进去试 如果真的不会的话 10/26 23:12