公务员考试:数字推理习题精解(4)
1.
(2×2-1)/2,(3×3-1)/5,(4×4-1)/8,(5×5-1)/11,( )
A.12/13
B.35/13
C.12/7
D.5/2
2.
A.1/6
B.1/8
C.1/4
D.1/9
3.
1/6,2/3,3/2,8/3,( )
A.10/3
B.25/6
C.5
D.35/6
4.
1/4,3/10,( ),2/5
A.23/50
B.17/40
C.11/30
D.7/20
5.
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