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2021年公务员考试行测练习:数字推理(16)-国家公务员考试网
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2021年公务员考试行测练习:数字推理(16)

发布时间:2021-01-20 10:25:22 作者:
1.22 ,306 ,512 ,820 ,1330 ,( )

A.1536

B.1542

C.2136

D.2142

2.

11/3,7/3,1,( ),﹣5/3

A.7/3

B.﹣1/3

C.5/3

D.4/3

3.

A.13

B.7

C.0

D.-6

4.

0, 3, 8, 15, 24, ( )

A.33

B.35

C.48

D.49

5.25,15,10,5,5,( )

A.10

B.5

C.0

D.-5

答案与解析

1.答案:

解析: 数列拆分,分别是2,3,5,8,13,(21),另一半为二级等差数列2,06,12,20,30,(42),所以本题选择D。

2.答案:

解析:

原数列可化为11/3、7/3、3/3、( )、﹣5/3,分母均为3,分子11、7、3、(﹣1)、﹣5是公差为﹣4的等差数列,则原数列未知项为﹣1/3,故正确答案为B。

3.答案:

解析:

左上数字×左下数字=右上数字+右下数字:

6×9=28﹢26,3×9=15+12,0×9=?+6,所以所求项为-6。故正确答案为D。

4.答案:

解析:

题干中数列符合以下多级数列规律:

故正确答案为B。

5.答案:

解析: 数列依次递减,但最后出现两项相同项,做差无明显规律,考虑递推数列。简单计算后发现原数列为递推差数列:前两项之差等于第三项,下一项应该是5-5=0。因此,本题答案为C选项。


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