作者oranger (从新出发)
看板GMAT
标题[计量] GWD-8 三题求救
时间Wed Aug 27 23:28:04 2008
< 9 >
If an interger n is to be chosen at ramdon from the integers 1 to 96,
inclusive, what is the probablity that (n+1)(n+2) will be divisible by 8?
Ans: 5/8 (我怎麽算都是3/8 = =)
< 29 >
The annual rent collected by a corporation from a certain building was x
percent more in 1998 than in 1997 and y percent less in 1999 than in 1998.
Was the annual reant collected by the corporation from the building more in
1999 than in 1997?
(1) x > y
(2) xy/100 < x-y
Ans: B (但是答案用粗体还标了星号,不知道是不是争议题)
< 32 >
If m and v are integers, what is the vaule of m + v?
(1) mv = 6
(2)( m + v)平方= 25
Ans:E (我选C, m,v一个为2一个为3,不知道哪里错了,请指点!!)
请大家帮忙, 谢谢!!
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1F：推 dodohuang:32. m v 也可以取负喔 ==> E 08/27 23:46
2F：→ oranger:喔喔 原来如此 了解!! 谢谢:) 08/27 23:52
3F：推 GGRIP:可以问一下3/8怎麽算的吗? 08/28 00:27
4F：→ oranger:对不起 我没注意到我题目po错了> <是n(n+1)(n+2)才对 08/28 23:01