江苏公务员考试之数字推理精选练习八十一
2011-08-17 江苏公务员考试网
1. 1, 2,3,5,16,( )
A.123 B.231 C.321 D.525
2. 2,5,13,38,( )
A.121 B.116 C.106 D.91
3. 12, 6, 18, 12, 30, ( ) 34
A.4 B.8 C.10 D.12
4. 2, 7, 14, 21, 294, ( )
A.28 B.35 C.273 D.315
5. 1144,1263,1455,1523,( ),1966
A.1763 B.1857 C.1873 D.1984
江苏公务员考试网参考答案及解析:
1. 2^2-1^2=3
3^2-2^2=5
5^2-3^2=16
16^2-5^2=...231
2. 2*4=8=13-5
5*5=25=38-13
13*6=78=116-38
3. 奇数项为偶数项的差
4. 2*7=14
7+14=21
14*21=294
21+294=315
5. 14*1=14 13*2=26 15*3=45 13*4=52 17*5=85 16*6=96
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