2005 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.
康妮把一个数乘以 ，得到答案 。可是她本应把这个数除以 才能得到正确答案。正确答案是多少？
Connie multiplies a number by and gets as her answer. However, she should have divided the number by to get the correct answer. What is the correct answer?
答案：B
小提示：
先撤销康妮错误的乘法，求出原来的数
Undo Connie’s mistaken multiplication to find the original number.
大提示：
然后把原来的数除以
Then divide that original number by .
解答：
因为康妮乘以 ，所以原来的数是 。正确做法是除以 ，得到 。
所以正确答案是 B。
Since Connie multiplied by her original number was To get the correct answer, she must divide by to get
Thus, B is the correct answer.
其他年份的第 1 题
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