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2021年公务员考试行测练习:数字推理(194) -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(194)

发布时间:2021-09-24 11:30:54 作者:
1.74,38,18,10,4,( )

A.2

B.1

C.4

D.3

2.

A.

B.

C.

D.

3.2,6,12,20,30,( )

A.38

B.42

C.48

D.56

4.

假设67代表C,7179代表GO,6778代表CN,那么687389代表( )。

A.FIY

B.BOY

C.DIY

D.DOG

5.

( ),20,16,18,17

A.12

B.14

C.16

D.18

答案与解析

1.答案:

解析: 74=38×2-2,38=18×2+2,18=10×2-2,10=4×2+2,4=(3)×2-2。

2.答案:

解析:

第二行加第三行,除以第一行是一个等差数列:(8+16)/6=4,(8+13)/7=3,(9+5)/7=2,按照这个规律,未知项为:28×1-9=19,故正确答案为C。

3.答案:

解析:

\

4.答案:

解析:

故正确答案为C。

5.答案:

解析:

第三项开始,每一项都等于前两项和的一半,18=(20+16)÷2,17=(16+18)÷2,故未知项为16×2-20=12。

故正确答案为A。


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