2003 AMC 8 第 17 题
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17.
下面列出的六个孩子来自两个家庭，每个家庭有三个兄弟姐妹。每个孩子有蓝色或棕色眼睛，以及黑色或金色头发。同一个家庭的孩子至少有其中一个特征相同。哪两个孩子是 Jim 的兄弟姐妹？
The six children listed below are from two families of three siblings each. Each child has blue or brown eyes and black or blond hair. Children from the same family have at least one of these characteristics in common. Which two children are Jim's siblings?
Nadeen 和 Austin
Nadeen and Austin
Benjamin 和 Sue
Benjamin and Sue
Benjamin 和 Austin
Benjamin and Austin
Nadeen 和 Tevyn
Nadeen and Tevyn
Austin 和 Sue
Austin and Sue
答案：E
解答：
Nadeen、Austin 和 Sue 是唯一与 Jim 共享某个特征的 个人。需要找出其中哪一个与其他人完全不同。
Austin 和 Sue 都有蓝色眼睛，所以 Nadeen 是不属于这一组的人。因此 Austin 和 Sue 是 Jim 的兄弟姐妹。
所以正确答案是 E。
Note that Nadeen, Austin, and Sue are the only individuals who share a characteristic with Jim. We need to find which of the are completely different from the others.
Austin and Sue both have blue eyes, which makes Nadeen the odd one out. Therefore, Austin and Sue are Jim's siblings.
Thus, E is the correct answer.
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