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[原创]记忆狂人再现江湖,11/20北京巨多JJ倾情奉献

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31#
发表于 2006-11-21 14:29:00 | 只看该作者

18,3^10*33^22)与那个数最接近
            

答案:10^23 

   这题没头绪,请NN给个思路啊,快考啊!谢谢!!!!!! 

32#
发表于 2006-11-21 14:54:00 | 只看该作者

jj79There is one more I remember, but couldn't draw - 4 lines interect each other forming a "#" not necessarily //.  4 corner w, x, y and z.  ask x+z=? 

1) w=95 2)z=125 Answer is D for sure

    老机经不对吧,二个横直线不平行,必须知道W和Z才行啊。应该是C合起来才能确定X+Z的值吧。如果横直线平行,竖的平行不平行,都可以,则答案为D。

   不知条件是什么啊?知道的请说一下啊!谢了先!


[此贴子已经被作者于2006-11-21 15:04:50编辑过]
33#
发表于 2006-11-21 14:59:00 | 只看该作者

 

实在忍不住,再来顶一下.

34#
发表于 2006-11-21 18:55:00 | 只看该作者

2,
  
逻辑有个og里面的,说的是grain meat,因为制造1meat需要很多份grain,所以政府不久后要进口grain,问assumption,应该是政府不进口meat

Gortland has long been narrowly self-sufficient in both grain and meat. However, as per capita income in Gortland has risen toward the world average, per capita consumption of meat has also risen toward the world average, and it takes several pounds of grain to produce one pound of meat. Therefore, since per capita income continues to rise, whereas domestic grain production will not increase, Gortland will soon have to import either grain or meat or both.

Which of the following is an assumption on which the argument depends?

(A) The total acreage devoted to grain production in Gortland will not decrease substantially.
(B) The population of Gortland has remained relatively constant during the country’s years of growing prosperity.
(C) The per capita consumption of meat in Gortland is roughly the same across all income levels.
(D) In Gortland, neither meat nor grain is subject to government price controls.
(E) People in Gortland who increase their consumption of meat will not radically decrease their consumption of grain.

选项里也没有不进口MEAT的啊,是不选E啊?

选项里也没有不进口MEAT的啊,是不选E啊?

35#
发表于 2006-11-21 20:35:00 | 只看该作者
以下是引用michelle423在2006-11-21 18:55:00的发言:

2,
  
逻辑有个og里面的,说的是grain meat,因为制造1meat需要很多份grain,所以政府不久后要进口grain,问assumption,应该是政府不进口meat

Gortland has long been narrowly self-sufficient in both grain and meat. However, as per capita income in Gortland has risen toward the world average, per capita consumption of meat has also risen toward the world average, and it takes several pounds of grain to produce one pound of meat. Therefore, since per capita income continues to rise, whereas domestic grain production will not increase, Gortland will soon have to import either grain or meat or both.

Which of the following is an assumption on which the argument depends?

(A) The total acreage devoted to grain production in Gortland will not decrease substantially.
(B) The population of Gortland has remained relatively constant during the country’s years of growing prosperity.
(C) The per capita consumption of meat in Gortland is roughly the same across all income levels.
(D) In Gortland, neither meat nor grain is subject to government price controls.
(E) People in Gortland who increase their consumption of meat will not radically decrease their consumption of grain.

选项里也没有不进口MEAT的啊,是不选E啊?

选项里也没有不进口MEAT的啊,是不选E啊?

选项里也没有不进口MEAT的啊,是不选E啊?

是啊, 应该选E
36#
发表于 2006-11-21 20:56:00 | 只看该作者

MATH:

1.2m3n5u=360 2u3m5n

1350

2.两个圆,一半径r,另一半径为r+0.1,问两圆面积之差

pi(0.2r+0.01)

3.DS:A,B,C 三价格分别为8009001000,总花费为10900,问能否求出A,B,C分别为多少

1A+B+C=12

2A等于5

我选了C

应该选B吧, 后面有人跟帖, A = 5, B + C = 6900, 所以 B只能为 1, C 只能为 6了.

4.长70的楼梯与墙夹角为60度,楼梯被elevated离地7,问楼梯定点离

地面的距离。

应该为42

5DS:某条直线经过(1,p),问其斜率是否为负

(1)其同时经过(p,13)

(2)经过(0,1

应该是E, 有两个条件, (13-p)/(p-1) = (1-p)/(0-1), 得出 p= 4 or -3, 所以无法确定.

6, 一个委员会要从4个学校里选4个老师(22女),

每个学校选1个,每个学校推荐男女老师各1名,问有多少种选法

C4,2 = 6

7,某汽车行使125miles,问其是否行驶超过3个小时,1miles=1.6kilometers

(1) 时速低于62公里每小时

(2)不少于每50秒行使1公里

125 miles= 200 km, (1) time <= 200/62 = 3.XXX, 所以一定超过

(2) speed >= 1/(50/3600) km/h = 72 km/h,

so, time >= 200 / 72 = 2.XXXX, 一定少于3个小时

选D

8DS:Is m>n

(1) m/n>1

(2)(m-n)/n>(m-n)/m

(1) not sufficient, m =2, n = 1, m>n,   m=-3, n=-2, m<n

(2) m=-3, n=-2, 满足 (m-n)/n > (m-n)/m, 但是 m<n. 同样, m=2, n=1也满足(m-n)/n > (m-n)/m, 可是m>n

选E

9,DS:p,q大于一的整数,问p+q

1. 1<p/q<1.6

2. pq=77

10,三个点,坐标m(1,4),n(4,4),r(4,8)

mn+nrmr(直线距离)长多少

11,两种选择A,B,A,B重合部分是B单独的两倍,AB的两倍,已知

A,B重合部分为5000,求A

我选了15000

12,两个公司生产产品分别为X,Y,已知重合部分是3X,求总共多少产品

Y-2X

13,两家公司J K gross profit 都是28,000, 并告知 gross profts=revenue-expense, Jexpense是多少?

(1) JrevenueK2, JexpenseK3
   

(2) JrevenueXXX (某个具体数字, 不过想不起来是几了)

14DS:某种股票以价格2.5每股收进n股,卖出m(m<n)股,然后再卖出n-m股,问

是否知道n-m的每股价格

1 n=2m

2
  
后面n-m股卖出了24000

15.求和,1/2+1/2^2+……1/2^10

选在0.51之间那个选项

16,求和4/n-4/(n+1)前一百项的值

17DS:求最小的n使的10^n乘以x大于一

110^2乘以x<1

20.00002<x<0.0001

18,3^10*33^12)与那个数最接近

答案:10^23

19,m/n=1.4,(m-n)/(m+n)的平方与下列那个最接近

答案:0.03

20,某年人口17000,每单位土地10人,今年人口123000,每单位土地有人口41

问土地增加量

123000/41-17000/10=13001.3×10^3(大概意思就是这样,反正选1.3那个选项)

228^11-8的各位数

23DS:n^x+2n是否被4整除

(1) X=3

(2) n=5

24.3整除余2,被10整除余1,问被30整除余多少

答案:11


37#
发表于 2006-11-21 21:33:00 | 只看该作者

9,DS:p,q大于一的整数,问p+q

1. 1<p/q<1.6

2. pq=77

2=> p q should be 7 and 11,  or 1 and 77,

1=> p and q should be 11 and 7

choose C

10,三个点,坐标m(1,4),n(4,4),r(4,8)

mn+nrmr(直线距离)长多少
            

mn+nr= 3+4, mr=5, difference is: 7-5=2

11,两种选择A,B,A,B重合部分是B单独的两倍,AB的两倍,已知
            

A,B重合部分为5000,求A

我选了15000

agree

12,两个公司生产产品分别为X,Y,已知重合部分是3X,求总共多少产品
            

Y-2X

how to get this answre?????????????????help!!

13,两家公司J K gross profit 都是28,000, 并告知 gross profts=revenue-expense, Jexpense是多少?

(1) JrevenueK2, JexpenseK3
   

(2) JrevenueXXX (某个具体数字, 不过想不起来是几了)

choose D

14DS:某种股票以价格2.5每股收进n股,卖出m(m<n)股,然后再卖出n-m股,问
            

是否知道n-m的每股价格
            

1 n=2m

2  后面n-m股卖出了24000

E

15.求和,1/2+1/2^2+……1/2^10
            

选在0.51之间那个选项
        

= 3/4 + 1/8 + 1/16 + 1/32 + ....1/1024

= 7/8 + 1/16 + 1/32 + ....1/1024

=每次新加一个, 都是使得分母扩大一倍, 分子比分母少1

所以, 结果就是看最后一个1/1024了, 也就是 1023/1024

1023/1024   有人可以用简单的算法试试吗?

16,求和4/n-4/(n+1)前一百项的值
        

=4*[(1-1/2)+ (1/2-1/3)+......(1/100 - 1/101)]

=4*(1-1/101)

17DS:求最小的n使的10^n乘以x大于一
            

110^2乘以x<1

20.00002<x<0.0001

?????????????????????

18,3^10*33^12)与那个数最接近
            

答案:10^23

???????????????????????

19,m/n=1.4,(m-n)/(m+n)的平方与下列那个最接近
            

答案:0.03

agree

20,某年人口17000,每单位土地10人,今年人口123000,每单位土地有人口41
            

问土地增加量
            

123000/41-17000/10=13001.3×10^3(大概意思就是这样,反正选1.3那个选项)
        

agree

228^11-8的各位数
        

个位数吧?

那就是8*(8^10-1)=8*(2^30-1)=8*(1024^3-1)= ****4

23DS:n^x+2n是否被4整除
            

(1) X=3

(2) n=5

B

24.3整除余2,被10整除余1,问被30整除余多少
            

答案:11

agree

agree

38#
发表于 2006-11-21 21:58:00 | 只看该作者
以下是引用boochxu在2006-11-21 14:29:00的发言:

18,3^10*33^22)与那个数最接近
   

答案:10^23 

   这题没头绪,请NN给个思路啊,快考啊!谢谢!!!!!! 

(ZZ)可以转换成11*(99)^11 大概等于 10 * (100)^11 = 10^23

39#
发表于 2006-11-22 15:16:00 | 只看该作者

真不是一般的强!!!!!狂赞!!!!!!!

40#
发表于 2006-11-24 19:38:00 | 只看该作者
以下是引用wwtpingxiang在2006-11-20 22:13:00的发言:

楼上的,这道题目刚刚写错了

应该为

8DS:Is m>n

(1) m/n>1

(2)(m-n)/n>(m-n)/m

考试的时候我代了两个数m=-2,n=-1

l两个条件都满足,但是m<n

考试的时候我代了两个数m=-2,n=-1

l两个条件都满足,但是m<n

考试的时候我代了两个数m=-2,n=-1

l两个条件都满足,但是m<n

看了楼主的贴,我想起这题我也碰到了。

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