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标题: OG 12 DS26 求解 [打印本页]

作者: ItalyPirlo    时间: 2012-12-19 13:12     标题: OG 12 DS26 求解

没人讨论过这套题么,我觉得这题有问题啊。求指导
题目: The number n of units of its product that Company X is
scheduled to produce in month t of its next fi scal year
is given by the formula n = 900/(1+c*2^-t), where c is a
constant and t is a positive integer between 1 and 6,
inclusive. What is the number of units of its product
that Company X is scheduled to produce in month 6 of
its next fi scal year?
(1) Company X is scheduled to produce 180 units of
its product in month 1 of its next fi scal year.
(2) Company X is scheduled to produce 300 units of
its product in month 2 of its next fi scal year
作者: xinxiangwei    时间: 2012-12-19 19:52

答案为D

LZ疑惑点:
1===> 1+c*2^-1=5 c=8 但是题目中说“c is a
constant and t is a positive integer between 1 and 6”
这个等于8的c不是要舍弃么?
作者: henryest    时间: 2012-12-20 07:02

要看清楚题,题目说的是t是定义在1-6的,没说c是定义在1-6,只说了c是常数,所以求出来c=8是满足条件的
作者: ItalyPirlo    时间: 2012-12-20 19:40

谢谢LS的。。
晕。。居然是自己没看清楚 还纠结半天。。




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