TTGWD7-23/7-29

Q23:

The figure above shows two entries, indicated by m and n, in an addition table.  What is the value of n + m?

(1)     d + y = -3

(2)     e + z = 12

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.

不明白文章的意思,谢了哈

Q29:

Leo can buy a certain computer for p₁ dollars in State A, where the sales tax is t₁ percent, or he can buy the same computer for p₂ dollars in State B, where the sales tax is t₂ percent.  Is the total cost of the computer greater in State A than in State B?

(1)     t₁ > t₂

(2)     p₁t₁ > p₂t₂

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.

可能我对文章理解有误,为什么C不行

P1(1-t1) - P2(1-t2)

= P1-P2 -(P1t1-P2t2) 不确定

可举例证明

p1 = 10 t1=.5 p2=100 t2=.01

c1 = 5 c2=99

P1= 1000 t1=.2 P2 = 100 t2=.1

c1 = 800, c2= 90

Please take a look at existing discussions before you post your questions!  Both questions have been discussed before.

http://forum.chasedream.com/dispbbs.asp?boardid=22&id=184062&star=1#184062

涛涛第7套——GIGI第5套，对应关系：题号按顺序对应。

请优先参考GIGI版GWD5讨论链接
http://forum.chasedream.com/dispbbs.asp?boardID=22&ID=58619

好像og10上的题目唉

就是交叉点相加

选C,列式子就明白了