What is the total number of integers between 1 00 and 300 that are divisible by 3?

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问题 What is the total number of integers between 1 00 and 300 that are divisible by 3?

选项 A、66
B、67
C、68
D、65
E、64

答案B

解析这道题目中300刚好是3的倍数，不用往小里凑；同理如果a恰好是n的倍数，也不需要把a往大里凑；因此这道题的计算方法为：(300-102)/3+1=67，正确答案为B。

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