求教~GWD的一道数学DS题

Reenchie · 发表于 2015-9-14 15:11:21

What is the sum of a certain pair of consecutive odd integers?
(1) At least one of the integers is negative.
(2) At least one of the integers is positive.

Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
为什么选C呢？我选的是E 因为如果1）2）都成立可以有很多种情况。比如：-1,1 和为0 或-1,1,3 和为3.

fireblame · 发表于 2015-9-14 15:16:09

a certain pair of consecutive 相邻的一对（两个）

Reenchie · 发表于 2015-9-14 15:33:01

fireblame 发表于 2015-9-14 15:16
a certain pair of consecutive 相邻的一对（两个）

是我看题大意了谢谢呢~

求教~GWD的一道数学DS题

所属分类: GMAT考试

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