2. 外语
  3. The sum of n numbers is greater than 48. If the average (arithmetic mean) of the n numbers is 1.2, what is the least possible va

The sum of n numbers is greater than 48. If the average (arithmetic mean) of the n numbers is 1.2, what is the least possible va

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问题 The sum of n numbers is greater than 48. If the average (arithmetic mean) of the n numbers is 1.2, what is the least possible value of n? ________.
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答案41
解析 根据题目，1.2n＞48→n＞40，n是正整数，n最小是41，故答案是41。
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本试题收录于： GRE QUANTITATIVE题库GRE分类
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