【OG20-P273-239题】A certain mixture of paint requires blue, yellow, _OG18新题

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【OG20-P273-239题】

A certain mixture of paint requires blue, yellow, and red paints in ratios of 2:3:1, respectively, and no other ingredients. If there are ample quantities of the blue and red paints available, is there enough of the yellow paint available to make the desired amount of the mixture?

(1) Exactly 20 quarts of the mixture are needed.

(2) Exactly 10 quarts of the yellow paint are available.

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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题目讨论（6条评论）

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emily666

不够也是充分

0 0 回复 2020-03-17 16:05:14
sweeti

ample quantities of blue or red,

0 0 回复 2018-12-28 19:28:20
sweeti

ample quantities of blue or yellow means the other two color available at any time, so B correct

0 0 回复 2018-12-28 19:27:53
Amcenrry

原料充足与否，食欲所需和供给决定的。供过于求即可。

0 0 回复 2018-11-06 09:49:23
Aliceee

一种油漆组成需要蓝黄红三种原料，比例分别是2:3:1。蓝色和红色的原料充足，问是否有充足的黄色原料来造出目标数量的油漆。这个解题思路很简单，不需要求出具体数值，只要能判断黄色原料是否充足就行了。那么现在未知的条件是到底需要组成多少数量的油漆，以及现有多少量的黄色原料。那么题目给出的两个条件分别是：条件一：需要20quarts的油漆条件二：现在有10quarts的黄色原料那么根据上面所说的解题思路来说，因为有两个未知条件，条件一和二分别只满足了一个未知，所以单独来看都是不行的。但是把条件一和二合并之后，两个未知条件都有了具体数值，那么无论具体数值是多少，最终解出来是黄色原料充足还是不充足，这个问题都是可以回答的。所以选c。

3 0 回复 2018-09-08 21:42:34
棒棒哒胖胖回复Aliceee

这种题目真是活见鬼了

1 0 回复 2018-10-23 20:02:48

小林700回复棒棒哒胖胖

＋1

0 0 回复 2018-12-15 03:07:07

tess

【引用OG解析】Given that the mixture requires blue paint, yellow paint, and red paint in the ratios 2:3:1, it follows that  of the mixture will be yellow paint. Determining whether there is enough yellow paint available depends on how much of the mixture is needed and how much yellow paint is available.

1. This indicates that exactly 20 quarts of the paint mixture are needed, so = 10 quarts of yellow paint are needed. However, there is no information about how much yellow paint is available; NOT sufficient. 
2. This indicates that exactly 10 quarts of yellow paint are available, but there is no information about how much of the mixture or how much yellow paint is needed; NOT sufficient. Taking (1) and (2) together, 10 quarts of yellow paint are needed and 10 quarts are available.

0 回复 2018-07-10 23:49:32