Pls. help for 1 gmat DS

shain · 发表于 2010-10-20 11:13:44

if n is the positive integer and r is the remainder of "n方-1 devided by 8", what is the value of remainder r?

1. n is odd
2. n can not be devided by 8

Thanks!!!!

rainhoho505 · 发表于 2010-10-20 11:25:24

LL可以看下这个贴http://forum.chasedream.com/GMAT_Math/thread-437516-1-1.html

rainhoho505 · 发表于 2010-10-20 11:25:58

帖子主题：关于求余数问题的一个简单方法-增强版

shain · 发表于 2010-10-20 15:20:39

thanks a lot!

shain · 发表于 2010-10-20 15:33:48

还是没明白选哪个呢？谢谢！

shain · 发表于 2010-11-1 19:14:35

pls. help!

shain · 发表于 2010-11-14 16:02:04

ding!!!! pls. help!

Pls. help for 1 gmat DS

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