有哪位NN帮帮忙啊？GWD25的数学题

clhxhxj

Q23.

At a fruit stand yesterday, the price of each apple was $0.10 more than the price of each orange. What was the total revenue from the sale of oranges at the fruit stand yesterday?

(1) The number of oranges sold at the fruit stand

   yesterday was 5 more than the number of

   apples.

(2) The total revenue from the sale of apples

   at the fruit stand yesterday was $15.00

Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient

l        Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient

l        BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

l        EACH statement ALONE is sufficient

l        Statements (1) and (2) TOGETHER are NOT sufficient

答案选C，但我怎么算都觉得是E

Q32.

Last year in a group of 30 businesses, 21 reported a net profit and 15 had investments in foreign markets. How many of the businessesdid not report a net profit nor invest in foreign markets last year?

(1) last year 12 of the 30 businesses

   reported a net profit and had invest-

   ments in foreign markets.

(2) last year 24 of the 30 businesses

   reported a net profit or invested in

foreign markets, or both.

Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient

l        Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient

l        BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

l        EACH statement ALONE is sufficient

l        Statements (1) and (2) TOGETHER are NOT sufficient

答案B，但我选了D~~~

Q13

If the average (arithmetic mean) of the assessed values

of x houses is $212,000 and the average of the assessed

values of y other houses is $194,000, what is the average

of the assessed values of the x+y houses?

 

(1)    x+y=36

(2)    x=2y

 

     A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

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

Answer:C

怎么我还是觉得B就可以了啊~~~

Q10

     The sides of a square region, measured to the

         nearest centimeter, are 6 centimeters long. The

         least possible value of the actual area of the

         square region is

A.36.00 sq cm

B.35.00 sq cm

C.33.75 sq cm

D.30.25 sq cm

E.25.00 sq cm

AnswerC

我选D了~~~~~~~~

快考试了，一做完这些题目，真的被打击得很惨~

yjz809

 如果可以安慰一下你的话，我选的每个答案都跟你一样。。。

angelwds

我算的结果和你一样。。

[此贴子已经被作者于2009/8/21 14:25:28编辑过]

yingS

me2

每道题都和你算的一样 

LZ应该有信心了

飞鹰_JK

我验算的答案和楼主的一摸一样。

答案应该错了。

[此贴子已经被作者于2009/8/21 19:37:29编辑过]

KiteRunner

楼主，我的答案也都和你一样……