雷哥网GMAT-【OG20-P284-361题】In a product test of a common cold remedy, x perce_OG17新题

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【OG20-P284-361题】

In a product test of a common cold remedy, x percent of the patients tested experienced side effects from the use of the drug and y percent experienced relief of cold symptoms. What percent of the patients tested experienced both side effects and relief of cold symptoms?

(1) Of the 1,000 patients tested, 15 percent experienced neither side effects nor relief of cold symptoms.

(2) Of the patients tested, 30 percent experienced relief of cold symptoms without side effects.

A

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

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

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

EACH statement ALONE is sufficient.
分析D选项
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E

Statements (1) and (2) TOGETHER are NOT sufficient.
分析E选项
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当前版本由 Helen 更新于2018-10-18 00:20:40 感谢由 Helen 对此题目的解答所做出的贡献。

题干：假设总人数是m，z=x+y+w-m
条件1：w=1000*15%=150，m=1000
x和y的值未知，不充分
条件2：y-z=30%m，不充分
结合：无法求出z，不充分

题目讨论（4条评论）

提交

ziqi

要有准确数字

0 0 回复 2022-04-01 20:24:51
Jess123

好像gmat数学题目里凡是提到求值的全都是要算出准确数字，带字母的答案不对。

10 0 回复 2019-03-30 22:43:00
karissa

求助，这个题y-30不就是答案吗？得出只有选项2 即可，选b?

0 0 回复 2019-02-15 14:54:00
平常心回复karissa

y是未知数

0 0 回复 2019-07-16 16:30:42
11

side effect no side effect total Relief x 300 no relief ? 150 total 550 450 1000

2 0 回复 2017-11-19 06:45:14