What is the average (arithmetic mean) of 8 consecutive odd integers if the smallest of those integers is n? -题库考试答案搜索网

What is the average (arithmetic mean) of 8 consecutive odd integers if the smallest of those integers is n?

单选题

2022-05-09 11:59

A、n+5
B、n+6
C、n+7
D、n+8
E、n+9

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正确答案

C

试题解析

最小的整数为n。它们是连续的奇数。这组整数为:n,n+ 2, n+4, n+6, n+8, n+10, n+12, n+14。计算这些整数的平均数即为将它们想加除于8。得出（8n+56）/8=n+7

标签：国外英语考试美国学术能力评估考试（SAT）

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