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! |