2020 AMC 12A 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.
Carlos 拿走了一个完整馅饼的 。Maria 拿走了剩余部分的三分之一。整个馅饼还剩下多少？
Carlos took of a whole pie. Maria took one third of the remainder. What portion of the whole pie was left?
小提示：
Carlos 拿走后，馅饼还剩 。
After Carlos takes his share, of the pie remains
大提示：
Maria 拿走这个 的 ，所以剩余部分的 留下
Maria removes of that , so of the remainder is left
解答：
Carlos 拿走 后，剩余部分为 。
Maria 拿走其中三分之一，即 ，所以还剩 。
因此，正确答案是 C。
After Carlos takes the remaining portion is
Maria takes one third of this, namely leaving
Thus, C is the correct answer.
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