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Then are between 40 and 70 members in a certain club. If 1 member is absent then the remaining members can be divided into groups of 4 members each with no members left over. If 2 members are absent, then the remaining members can be divided into groups of 5 members each with no members left over. How many members are in the club?
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· 相关考点
1.8.7 求通式
1.8.7 求通式
以上解析由 考满分老师提供。
