江苏公务员考试之数字推理精选练习七十七
1. 25,32,37,47,( )
A.56 B.57 C.58 D.59
2. 11,22,33,45,( ),71
A.55 B.56 C.57 D.58
3. 4,6,10,18,34,( )
A.50 B.64 C.66 D.68
4. 2,15,7,40,77,( )
A.96 B.126 C.138 D.156
5. 256,187,589,743,( )
A.701 B.900 C.891 D.777
江苏公务员考试网参考答案及解析:
1.解析:25+2+5=32
32+3+2=37
37+3+7=47
47+4+7=58
2.解析:11 22 33 45 ? 71
11 11 12 12 14
45+12=57
3.解析:2×4-2=6
2×9-2=10
2×10-2=18
2×18-2=34
2×34-2=66
4.解析:做差
13 33 ()
13=4×2-3;
33=6×2-3;
()=8×2-3=61;
61+77=138 选C
5.解析:2+5-6=1
1+8-7=2
5+8-9=4
7+4-3=8
8+9-1=16
A.56 B.57 C.58 D.59
2. 11,22,33,45,( ),71
A.55 B.56 C.57 D.58
3. 4,6,10,18,34,( )
A.50 B.64 C.66 D.68
4. 2,15,7,40,77,( )
A.96 B.126 C.138 D.156
5. 256,187,589,743,( )
A.701 B.900 C.891 D.777
江苏公务员考试网参考答案及解析:
1.解析:25+2+5=32
32+3+2=37
37+3+7=47
47+4+7=58
2.解析:11 22 33 45 ? 71
11 11 12 12 14
45+12=57
3.解析:2×4-2=6
2×9-2=10
2×10-2=18
2×18-2=34
2×34-2=66
4.解析:做差
13 33 ()
13=4×2-3;
33=6×2-3;
()=8×2-3=61;
61+77=138 选C
5.解析:2+5-6=1
1+8-7=2
5+8-9=4
7+4-3=8
8+9-1=16
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