2. 外语
  3. Questions are based on the following data. In 1993 the average (arithmetic mean) price per card for all greeting cards sold wa

Questions are based on the following data. In 1993 the average (arithmetic mean) price per card for all greeting cards sold wa

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问题 Questions are based on the following data.

In 1993 the average (arithmetic mean) price per card for all greeting cards sold was $1.25. For which of the following occasions was the number of cards sold in 1993 less than the total number of cards sold that year for occasions other than the ten occasions shown? Indicate all such occasions.
选项 A、Christmas
B、Valentine’s Day
C、Easter
D、Mother’s Day
E、Father’s Day
答案C,D,E
解析 此题问题略长，我们首先需要理解题目。该题问的是，以下节日中哪些节日卖的卡片的数量低于除了列表中十个节日在其他时间卖的卡片数量。这个题目的另一个难点在于理解“除了十个节日的其他时间卖的卡片数量”，根据左图，1993年的销售总额为$5.75 billion，每个卡的价格是$1.25，所以总销量为4.6 billion，右图中十个节日卖的总量为3.9 billion，所以(除了列表中十个节日在其他时间卖的卡片数量)为4.6 billion-3.9 billion=0.7 billion。对比右图中十个节日的销量，其中小于0.7 billion=7 million的节日，可知答案为CDE。
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