雷哥网GMAT-【OG20-P280-322题】 In the figure above, ifA, B, and C are the areas,_OG20新题

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【OG20-P280-322题】

In the figure above, ifA, B, and C are the areas, respectively, of the three nonoverlapping regions formed by the intersection of two circles of equal area, what is the value of B+C?

1.A+2B+C=24

2.A+C=18 and B=3

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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当前版本由追梦的猪猪更新于2021-11-02 13:47:02 感谢由追梦的猪猪对此题目的解答所做出的贡献。

题中已知 A=C。
结合条件 1 或者条件 2 都可以求出 B+C。
1.A+2B+C=24，把 A 干掉，替换成 C: 2C + 2B = 24。C+B=12
2.A+C=18 and B=3。2C = 18，C=9。所以 C+B = 12

题目讨论（10条评论）

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Crystal8

看漏了信息，两个圆大小一样

2 0 回复 2021-11-20 14:11:44
朋友醒醒

if A, B, and C are the areas, respectively, of the three nonoverlapping regions formed by the intersection of two circles of equal area,意思说两个交叠的圆是相等的，所以A.C相等

0 0 回复 2021-09-09 16:15:11
如果有时间的话我也能做对

根据条件一，既然两边面积相等，而B被算了两次，那单次B+C的面积就是两次B+A+C的一半：12

0 0 回复 2021-08-01 11:46:05
Lori88

看漏了equal area。

0 0 回复 2021-07-02 22:51:10
301282vcdeh

以为a和c包括b了的是不是只有我一个人。。。。

0 0 回复 2021-02-21 18:18:10
Jeaninla

好好审题 ifA, B, and C are the areas, respectively, of the three nonoverlapping regions formed by the intersection of two circles of equal area

0 0 回复 2021-02-11 02:16:53
185901alah

in the figure above 要有图才行吧不然没法判断是相交的部分是B还是剩下的部分是B

0 0 回复 2020-08-21 20:34:25
326636xqjg回复185901alah

nonoverlapping regions 看清楚题

0 0 回复 2021-02-03 17:36:29
你这只猪

不知道上次为什么会做错，已经忘记了，哈哈

0 0 回复 2020-06-28 10:15:25
emily666

漏看了equal area。。。

2 0 回复 2020-05-11 14:47:44
700+是我的幸运数字

equal area;A=C.....A+B=B+C,SO B+C=24/2......

0 0 回复 2020-02-01 10:26:38