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楼主: maggiehan
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[求助]新模考软件里的题,请大家帮忙看看,谢谢!!

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11#
发表于 2006-1-2 08:44:00 | 只看该作者
以下是引用maggiehan在2006-1-2 1:06:00的发言:

偶相信你一定能考好的,到时别忘了多带回点JJ哦。




托你吉言

12#
发表于 2006-1-3 01:34:00 | 只看该作者
祝赫连杀G好运. 新年快乐, 凯旋归来.
13#
发表于 2006-1-3 02:47:00 | 只看该作者

1   If 500 is the multiple of 100 that is closest to X and 400 is the multiple of 100 that is closest to Y , which multiple of 100 is closest to X +Y


(1)    X 小于500


(2)    Y 小于 400



这题怎么看着这么胡涂呢?题目中问“which multiple of 100 is closest to X +Y”,不应该给出5个选项吗?怎么看着不象DS题呢?

14#
发表于 2006-1-3 03:59:00 | 只看该作者
以下是引用xue3y在2006-1-3 2:47:00的发言:



1   If 500 is the multiple of 100 that is closest to X and 400 is the multiple of 100 that is closest to Y , which multiple of 100 is closest to X +Y


(1)    X 小于500


(2)    Y 小于 400




这题怎么看着这么胡涂呢?题目中问“which multiple of 100 is closest to X +Y”,不应该给出5个选项吗?怎么看着不象DS题呢?



X > 450, Y>350.


(1) 450< X <500


(2)350<Y<400


(1)+ (2) ===> X + Y 在800到900之间, 所以不确定.

15#
发表于 2006-1-4 13:22:00 | 只看该作者
谢谢tomasy,一个月没做数学了,不知道是我的脑袋锈了,还是新模考软件的题太绕,这道题我想了好久才明白,过几天就考了,还这样,我哭。。。
16#
 楼主| 发表于 2006-1-4 22:26:00 | 只看该作者

楼上别担心,多做题就好了,偶也这个月考,现在也很怕数学。

17#
 楼主| 发表于 2006-1-4 22:38:00 | 只看该作者

再接着求助两道题吧.


A store purchase 20 coats that each cost an equal amount and then sold each of the 20 coats at a euqal price , what was the store's gross profit on the 20 coats ?


1).If the selling price per coat had been twice as much , the store's gross profit on the 20 coats would have been 2400


2) If the store selling price per coat had been $2 more ,the store's gross profit on the 20 coats would have been 440


这道题偶觉得应该是C, 可答案是B。 如果B对,那A也应该对阿!!


2。Which of the following lists the number of points at which a circle can intersect a triangle?


A. 2, 6 only


B. 2,4,6 only


C. 1,2,3,6 only


D. 1,2,3,4,6 only


E. 1,2,3,4,5,6.


这道题什么意思啊??

18#
发表于 2006-1-4 22:59:00 | 只看该作者
以下是引用maggiehan在2006-1-4 22:38:00的发言:

再接着求助两道题吧.


A store purchase 20 coats that each cost an equal amount and then sold each of the 20 coats at a euqal price , what was the store's gross profit on the 20 coats ?


1).If the selling price per coat had been twice as much , the store's gross profit on the 20 coats would have been 2400


2) If the store selling price per coat had been $2 more ,the store's gross profit on the 20 coats would have been 440


这道题偶觉得应该是C, 可答案是B。 如果B对,那A也应该对阿!!


2。Which of the following lists the number of points at which a circle can intersect a triangle?


A. 2, 6 only


B. 2,4,6 only


C. 1,2,3,6 only


D. 1,2,3,4,6 only


E. 1,2,3,4,5,6.


这道题什么意思啊??



1。设总价格为P,总成本为C,利润为P-C


1)2P-C=2400


2)P+2*20-C=440,可求出P-C=400


2.是否选E.


我觉得题意是说任一个圆和三角形可能的交点有几个。当然0-6都是有可能的,E虽然没说0,但没说only

19#
发表于 2006-1-5 08:14:00 | 只看该作者

2。Which of the following lists the number of points at which a circle can intersect a triangle?


A. 2, 6 only


B. 2,4,6 only


C. 1,2,3,6 only


D. 1,2,3,4,6 only


E. 1,2,3,4,5,6.



我觉得这题选B,既然说intersect,那就应该排除相切的情况,所以只可能有2或4或6个交点。再讨论。。。

20#
发表于 2006-1-5 08:17:00 | 只看该作者
谢谢maggiehan的鼓励,其实我不是怕数学,我是因为阅读不好,所以老是不能正确理解题意,导致会做的题也做不对。
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