Board logo

标题: gwd4-9 [打印本页]

作者: 虚无飘渺    时间: 2005-10-4 06:23     标题: gwd4-9

If an integer n is to be chosen at random from the integers 1 to 96, inclusive, what is the probability that n(n + 1)(n + 2) will be divisible by 8?

A. ATH connecttype="rect" gradientshapeok="t" extrusionok="f">ATH>1/4

B. 3/8

C. 1/2

D. 5/8

E 3/4

答案是D,可是偶怎么算都是C啊 从1到96的偶数都可以符合条件吧。 望高人们指点迷津!


作者: 虚无飘渺    时间: 2005-10-6 13:14

I got it, thanks !!






欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/) Powered by Discuz! 7.2