2012 AMC 8 第 1 题
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所有题目均经美国数学协会（MAA）官方合法授权使用。
1.
Rachelle 用 磅肉为家人做 个汉堡。她要为社区野餐做 个汉堡，需要多少磅肉？
Rachelle uses pounds of meat to make hamburgers for her family. How many pounds of meat does she need to make hamburgers for a neighborhood picnic?
答案：E
小提示：
从 个汉堡按比例放大到 个汉堡。
Scale from hamburgers to hamburgers.
大提示：
汉堡数量变为三倍，所以肉的数量也变为三倍。
The hamburger count triples, so the meat amount triples.
视频讲解：
Click to load, then click again to play
文字解答：
个汉堡是 个汉堡的 ，所以 磅也是所需肉量的 。因此总肉量为 。
所以正确答案是 E。
If we have hamburgers, we have of the hamburgers. This means we have of the meat when we have pounds. The total amount of meat is therefore
Thus, the answer is E .
其他年份的第 1 题
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