两个Data Sufficiency问题－－GWD31-1-30/35

shiftmonkey

Q30:

Joanna bought only $0.15 stamps and $0.29 stamps.  How many $0.15 stamps did she buy?

(1)     She bought $4.40 worth of stamps.

(2)     She bought an equal number of $0.15 stamps and $0.29 stamps.

                

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: D

个人觉得A更为合适，0.15和0.29这两个面值只有购买相同的数量10才能凑成4.4，而第二个条件到底买了几张还是不清楚。

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Q35:

What is the median number of employees assigned per project for the projects at Company Z?

(1)   25 percent of the projects at Company Z have 4 or more employees assigned to each project.

(2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project.

                

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

麻烦NN解释一下这到题怎么理解，谢谢。

[此贴子已经被作者于2008-10-6 22:07:36编辑过]

shiftmonkey

Q35能否这么理解：

每个项目的人数可能为： 1、2 | 3 | 4、5、6……

比重为：                35％ 40％    25％

median是在中间位置的，所以是在40％这里面，也就是3。

这样理解正确吗？

ai1003

第一题答案错了吧

vieri_k

第一题答案错的， a对