1977 AMC 12 第 3 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。
3.
一名男子共有价值 的一美分、五美分、十美分、二十五美分和五十美分硬币。若每种硬币的枚数相同，则他共有多少枚硬币？
A man has in pennies, nickels, dimes, quarters and half dollars. If he has an equal number of coins of each kind, then the total number of coins he has is
小提示：
求这五种硬币各取一枚时的总价值
Find the value of one coin of each of the five types
大提示：
每组五枚硬币共值 美分
The five coins in one complete set are worth cents
解答：
每种硬币各取一枚，共值 美分。由于 ，五种硬币各有三枚，所以共有 枚硬币。
因此，正确答案是 E。
One coin of each kind is worth cents. Since there are three coins of each of the five kinds, or coins.
Therefore, the correct answer is E.
其他年份的第 3 题
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