OG 12 DS26 求解

木棉2012 · 发表于 2012-11-30 03:37:02

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

木棉2012 · 发表于 2012-11-30 03:40:03

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？

Jaycandoit · 发表于 2012-11-30 04:25:31

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？

-- by 会员木棉2012 (2012/11/30 3:40:03)

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

木棉2012 · 发表于 2012-11-30 04:29:25

谢谢LS的。。
晕。。居然是自己没看清楚还纠结半天。。

OG 12 DS26 求解

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