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标题: 求教GWD数学!!!! [打印本页]

作者: waytousff    时间: 2013-5-14 06:56     标题: 求教GWD数学!!!!

Q11:

Ina corporation, 50 percent of the male employees and 40 percent of the femaleemployees are at least 35 years old.  If42 percent of all the employees are at least 35 years old, what fraction of theemployees in the corporation are females?

A.     3/5

B.     2/3

C.     3/4

D.    4/5

E.     5/6

我如是做:50%ME+40%FE=42%E     接着我就傻了~  不知道该咋办了~    大牛牛们  帮帮~~


Q14:

If1050 – 74 is written as an integer in base 10 notation, what is thesum of the digits in that integer?

A.     424

B.     433

C.     440

D.    449

E.     467



这个74咋办???求教!!!

Q16:

IfJ, S, and V are points on the number line, what is the distance between S andV?

(1)     The distance between J and S is 20.

(2)     The distance between J and V is 25.


A.Statement (1) ALONE is sufficient, but statement (2) alone is notsufficient.

B.Statement (2) ALONE is sufficient, but statement (1) alone is notsufficient.

C.BOTH statements TOGETHER are sufficient, but NEITHER statementALONE is sufficient.

D.EACH statement ALONE is sufficient.

E.Statements (1) and (2) TOGETHER are NOT


大牛们~是不是只有得出一个唯一的答案,才算符合标准啊~两个答案并在一起可以得出好多种答案,这样不算得出答案么?

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Q17:

InTown X, 64 percent of the population are employed, and 48 percent of thepopulation are employed males.  Whatpercent of the employed people in Town X are females?

A.     16%

B.     25%

C.     32%

D.    40%

E.     52%

这个难道不是这样么?(1-48%)64%P=33.28%???但是答案是B

Q25:

Aphotographer will arrange 6 people of 6 different heights for photograph byplacing them in two rows of three so that each person in the first row isstanding in front of someone in the second row. The heights of the people within each row must increase from left toright, and each person in the second row must be taller than the personstanding in front of him or her.  Howmany such arrangements of the 6 people are possible?

A.     5

B.     6

C.     9

D.    24

E.     36

这个题不管我的脑子咋想,都觉得只有一种排法……可能我脑子不好使吧。

Q27:

Ifn = 811 – 8, what is the units digit of n?

A.     0

B.     1

C.     4

D.    6

E.     8

Answer:C


这种题有什么一个通用的做法吧~  但是我不知道诶~  求教求教!!!!

Q28:

Forany positive integer n, the sum of the first n positive integers equals[n(n+1)]/2.  What is the sum of all theeven integers between 99 and 301?

A.     10,100

B.     20,200

C.     22,650

D.    40,200

E.     45,150

Answer:

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Q29:

June25, 1982, fell on a Friday.  On which dayof the week did June 25, 1987, fall? (Note: 1984 was a leap year.)

A.     Sunday

B.     Monday

C.     Tuesday

D.    Wednesday

E.     Thursday

这个有啥规律呢?大牛牛们~

Q33:

Isxy > x/y?

(1)     xy > 0

(2)     y < 0


A.Statement (1) ALONE is sufficient, but statement (2) alone is notsufficient.

B.Statement (2) ALONE is sufficient, but statement (1) alone is notsufficient.

C.BOTH statements TOGETHER are sufficient, but NEITHERstatement ALONE is sufficient.

D.EACH statement ALONE is sufficient.

E.Statements (1) and (2) TOGETHER are NOT sufficient.


这种题要分正负数想嘛??


求教!!!!!!谢恩!!!!
作者: songxueer    时间: 2013-5-14 18:52

Q14 Q27 看不懂  Q25求大牛, 29和33是E么   Q28为什么我算出来的是20100
作者: captainer    时间: 2013-5-15 13:04

33是E的好像   我现在脑子已经木了    给好心的同学确认下     咱们一起坐等大牛的出现




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