5,12,21,34,53,80,( )
一道数字推理题 请哪位好心的聪明人帮忙解答解释下 谢谢
人气:152 ℃ 时间:2020-01-30 04:02:55
解答
12-5=7
21-12=9
34-21=13
53-34=19
80-53=27
以上差的关系是2、4、6、8、后面应该是10,所以答案是80+27+10=117
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