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Let S be the sequence of consecutive odd integers from 1 to 99.Sequence T is obtained from S by removing the integer 3 and then removing every 3rd integer after 3. Sequence V is obtained from T by removing the integer 7 and then removing every 7th integer after 7.Which of the following integers is in V?
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当前版本由 去没人的岛 更新于2024-06-19 14:21:30 感谢由 去没人的岛 对此题目的解答所做出的贡献。
S是1到99之间的所有奇数，S={1,3,5,7,9,11,13,……,99}
T是S里面去掉3和3开始后面的每第3个数，T={1,5,7,11,13,17,19,23,25,29,31,……}
V是T里面去掉7和7开始后面的每第7个数，V={1,5,11,13,17,19,23,25,31,}
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