再求GWD-1-Q30

kudoucliff · 发表于 2010-7-26 13:40:48

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.

数学错成我这样是不是不用考了……
但是这题为什么会选D呢……我怎么看都觉得选C啊……
求大牛解释！

liyingcai1988 · 发表于 2010-7-26 14:10:05

我记得做过这题...应该选A...
15x+29y=440 其中x和y都是正整数..
就可以解出来唯一解了..

kudoucliff · 发表于 2010-7-26 15:06:00

谢谢楼上，我也觉得啊……那么GWD的答案是错的？

liyingcai1988 · 发表于 2010-7-26 15:22:01

可能你找的版本答案是错的吧...我记得当初做答案是A...

Atir · 发表于 2011-7-26 01:22:07

看了OG明白了自己又粗心了

再求GWD-1-Q30

所属分类: GMAT考试

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