公务员考试行测数字推理全题型解析.docx
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公务员考试行测数字推理全题型解析
数字推理之我的错题、难题集
递推型:
1,0,1,1,2,(),5
A+B=C
1+0=1
0+1=1
1+1=2
1+2=3
2+3=5
3,9,6,9,27,(),27
a.36 b.9 c.18 d.1/16
A*3=D
3*3=9
9*3=27
6*3=18
9*3=27
113,202,222,400,(440)
a.400 b.555 c.518 d,628
(113-2)*2=222
(202-2)*2=400
(222-2)*2=440
4/3,0,4,8,(28)
a.27 b.21 c.18 d.28
4/3+0=4/3
0+4=4
4+8=12
4/3*3=4,4*3=12
或者
3^-1+1
3^0-1
3^1+1
3^2-1
3^3+1=28
1,3,2,4,5,16,()
a.50 b.86 c.75 d.71
1*3-1=2
3*2-2=4
2*4-3=5
4*5-4=16
5*16-5=75
3,2,3,7,18,(B)
a.36 b.47 c.24 d.70
以第一个3为基数,分别乘以各项
2*3=3+3
3*3=2+7
7*3=3+18
18*3=7+47
或者:
3B=A+C
2,1,-2,-10,4,()
A-40 B8 C-72 D-6
2*1-4=-2
1*(-2)-8=-10
(-2)*(-10)-16=4
(-10)*4-32=-72
0,3,17,95,()
A、119 B、239 C、479 D、599
1*1-1=0
2*2-1=3
3*6-1=17
4*24-1=95
5*120-1=599
1,2,6,24,120 分别乘以2,3,4,5
3,16,45,96,(175 ),288
1*3=3
2*8=16
3*15=45
4*24=96
5*(35)=(175)
6*48=288
3,8,15,24,(35),48
5 7 9 11 13
4,9,15,26,43,(71)
5,6,11,17,28 A+B=C
2,1,3,7,24,( 103 )
2+1*1=3
1+3*2=7
3+7*3=24
7+24*4=103
(10.25),13.5,22,41,81
10.25*2-7=13.5
13.5*2-5=22
22*2-3=41
41*2-1=81
2,6,30,210,2310,( )
2*3=6
6*5=30
30*7=210
210*11=2310
2310*13=()
2,3,7,25,121,( 721 )
2*2-1=3
3*3-2=7
7*4-3=25
25*5-4=121
121*6-5=721
2,17,69,139,(140)
2*8+1=17
17*4+1=69
69*2+1=139
139*1+1=140
2,5,9,16,35,( )
(5-2)*3=9
(9-5)*4=16
(16-9)*5=35
(35-16)*6=144
1,3/2,11/6,25/12,( )
3/2-1=1/2
11/6-3/2=1/3
25/12-11/6=1/4
X-25/12=1/5
32,8,4,3,( 3 )
32*1/4=8
8*2/4=4
4*3/4=3
3*4/4=3
1,2,1,6,9,10,()
1+2+1=4
2+1+6=9
1+6+9=16
6+9+10=25
9+10+17=36
2,4,0,8,8,24,40,()
0+4*2=8
8+0*2=8
8+8*2=24
24+8*2=40
40+24*2=88
5,6,19,17,(344),-55
A.15B.344C.343D.11
5^2=6+19
6^2=19+17
19^2=17+344
17^2=344-55
2,1,5,11,111,()
A.1982B.1678C.1111D.2443
(2×1)×2+1=5
(1×5)×2+1=11
(5×11)×2+1=111
(11×111)×2+1=2443
0,3,17,95,( )
A.119 B.239 C.479 D.599
1*1-1=0
1*2*2-1=3
1*2*3*3-1=17
1*2*3*4*4-1=95
1*2*3*4*5*5-1=599
1,2,5,12,27,()
1*2+0=2
2*2+1=5
5*2+2=12
12*2+3=27
27*2+4=58
0,0,1,5,23()
A.119 B.79 C.63 D.47
0*1+0
0*2+1
1*3+2
5*4+3
23*5+4=119
157,65,27,11,5,()
157=65*2+27
65=27*2+11
27=11*2+5
11=5*2+
(1)
15,65,175,369,()
A、671 B、690 C、675 D、717
3*5
5*13
7*25
9*41
11*61=671
2,15,40,77,(126)
1*2
3*5
5*8
7*11
9*14=126
-1,4,21,56,115,(204)
1*-1
2*2
3*7
4*14
5*23
6*34=204
-1,2,7,14,23,34差为3,5,7,9,11
或者做差得到:
5,17,35,59,89
再次做差得到:
12,18,24,30 等差
4/3,1,2,7,()
A、27B、21C、18D、24
4/3*3-3=1
1*3-1=2
2*3+1=7
7*3+3=24
0,1,1,4,19,()
A*3+B^2=C
0*3+1^2=1
1*3+1^2=4
1*3+4^2=19
4*3+19^2=
2,1,5,11,111,()
(A*B)*2+1=C
0,1,3,6,9,45,(),126
(0+1)*3=3
(1+3)*1.5=6
(3+6)*1=9
(6+9)*3=45
(9+45)*1.5=81
(45+81)*1=126
24,70,208,()
A140 B416 C622 D278
3A-2=B
24*3-2=70
70*3-2=208
208*3-2=416
0,1,3,8,21,()
A42 B29 C55 D63
3B-A=C
2,7,24,77,()
A154 B101 C238 D609
2*3+1=7
7*3+3=24
24*3+5=77
77*3+7=238
-1,-1,-2,-1,-3,( )
A.-2 B.0 C.-5 D.-1
(-1)^3+(-1)=-2
(-1)^2+(-2)=-1
(-2)^1+(-1)=-3
(-1)^0+(-3)=-2
3,7,21,64,( )
A100 B101 C102 D103
解法一:
除以3得到:
0,1,0,1,(0)选C
解法二:
3*3+7=16=4^2
7*4+21=49=7^2
21*5+64=169=13^2
64*6+(100)=484=22^2
4,7,13,22
3 6 9
2,3,8,13,( )
A29 B30 C31 D32
2*2-1=3
3*2+2=8
8*2-3=13
13*2+4=30
22,8,28,40,24,32,(16)
A-B的绝对值乘以2=C
5 6 6 9 ()81
A12 B15 C18 D21
A*B分别除以:
5,4,3,2得到C
5 6 6 9 ()90
A12 B15 C18 D21
(5-3)*(6-3)=6
(6-3)*(6-3)=9
(6-3)*(9-3)=18
(9-3)*(18-3)=90
4,11,25,(),7
A20 B22 C24 D26
4*3-1=11
11*2+3=25
25*1-5=20
20*0+7=7
2,6,10,18,32,()
A16B58C64D61
解析:
6*2-2*1=10
10*3-6*2=18
18*4-10*4=32
32*5-18*8=16
1,2,3,8,39,( )
A72B104 C225 D428
(1+2)*3-1=8
(2+3)*8-1=39
(3+8)*39-1=428
11,8,10,21,72,()
A173 B172C730D345
11*1-3=8
8*2-6=10
10*3-9=21
21*4-12=72
72*5-15=345
16. -3 6 0 12 12 36 ()
A.64 B36 C60 D48
A+B=3,6,12,24,48,96 96-36=60
19. 8 3 7 8.5 12 ()
A14.5 B15.5 C16.25 D20
7=8/2+3
8.5=3/2+7
12=7/2+8.5
X=8.5/2+12=16.25
22. 3 4 5 11 14
A104 B105 C 106 D107
A^2=B+C
1,3,-2,-14,17,()
A-238B-249C-252D-255
1*3-5
3*-2-8
-2*-14-11
-14*17-14=-252
14,2,15,12,2,()
A-11B24C-111D39
A+B-C得到:
1,5,25,125
12+2-(-111)=125
次方:
80,62,45,28,()
9^2-1=80
8^2-2=62
7^2-4=45
6^2-8=28
5^2-16=9
5,7,4,9,25,()
A.5 B.27 C.256 D.625
(5-7)^2=4
(7-4)^2=9
(4-9)^2=25
(9-25)^2=256
5,6,19,17,(),-55
5^2=6+19
6^2=19+17
19^2=17+X
17^2=X-55
1,2,9,64,()
1^0
2^1
3^2
4^3
(5^4)=625
5,5,14,38,87,()
A.167B.168 C.169D.170
做差得到:
0,9,24,49,(80)
1^2-1=0
3^2=9
5^2-1=24
7^2=49
9^2-1=80
87+80=167
12928()
A57 B68 C65 D74
0^3+1=1
1^3+1=2
2^3+1=9
3^3+1=28
4^3+1=65
1,13,4,22,31,(),274
A.93B.31C.103D.216
3^1=4-1
3^2=22-13
3^3=31-4
3^4=103-22
3^5=274-31
2,15,7,40,77,()
A、96 B、126 C、138 D、158
方法一:
2+15+7+(16)=40
15+7+40+(15)=77
7+40+77+(14)=138
方法二:
15-2=13=4^2-3
40-7=33=6^2-3
138-77=61=8^2-3
13、15、35、63、80、()
A、99 B、63 C、86 D、80
(1+3)^2-1=15
(1+5)^2-1=35
(3+5)^2-1=63
(6+3)^2-1=80
(8+0)^2-1=63
11/10,2,7,17,()
10^-1+1
8^0+1
6^1+1
4^2+1
2^3+1=9
14,20,54,76,(126)
3^2+5
5^2-5
7^2+5
9^2-5
11^2+5=126
5,13,25,41,61
1+4=5
4+9=13
9+16=25
16+25=41
25+36=61
2,30,130,350,(738)
1^3+1
3^3+3
5^3+5
7^3+7
9^3+9=738
63,72,76,112,()
A.256B.257 C.258D.259
正确答案:
A.
答案解析:
72-63=3^2 除了最高位其他位的平方
76-72=2^2
112-76=6^2
?
-112=12^2
-1,3,11,37,79,()
A.150 B151 C152 D153
正确答案:
B
答案解析:
1*0^2-1=-1
2*1^2+1=3
3*2^2-1=11
4*3^2+1=37
5*4^2-1=79
6*5^2+1=151
15, 26, 38,(),55
A.49B.67C.42D.81
正确答案:
B
答案解析:
个位的平方加上十位等于第二个数。
1,13,36,69,104,()
A224 B119 C343 D459
正确答案B
答案解析:
2^3-7=1
3^3-14=13
4^3-28=36
5^3-56=69
6^3-112=104
7^3-224=119
7,14,28,56,112,224 等比
27/7,53/6,79/5,99/4,107/3,97/2,()
A.51B.63C.79D.91
解析:
4-1/7
9-1/6
16-1/5
25-1/4
36-1/3
49-1/2
64-1/1=63
2,15,7,40,77,()
A96B126C138D156
15-2=13=4^2-3
40-7=33=6^2-3
138-77=61=8^2-3
-1,0,31,80,63,(),5
A.35B.24C.26D.37
0^7-1=-1
1^6-1=0
2^5-1=31
3^4-1=80
4^3-1=63
5^2-1=24
6^1-1=5
1,0,-1,-2,()
A^3-1=B
1^3-1=0
0^3-1=-1
-1^3-1=-2
-2^3-1=-9
1,5,14,32,( )
A.93/2 B.59 C.67 D.71
做差得到:
4,9,18,35
2^2+0=4
2^3+1=9
2^4+2=18
2^5+3=35
32+35=67
-1,7,5,21,(),43
A19 B23 C25 D29
答案解析:
1^2-2=-1
2^2+3=7
3^2-4=5
4^2+5=21
5^2-6=19
6^2+7=43
0,6,78,(),15620
A.240 B.252 C.1020 D.7771
1^2-1
2^3-2
3^4-3
4^5-4=1020
5^6-5
0、6、23、48、121、170
2^2-4=0
3^2-3=6
5^2-2=23
7^2-1=48
11^2-0=121
13^2+1=170
3,3,6,3,33,()
A.-24, B.27 C.36 D.54
A^2=B+C
3^2=3+6
3^2=6+3
6^2=3+33
3^2=33-24
3,30,29,12,()
A.92 B.7 C.8 D.10
1^4+2
3^3+3
5^2+4
7^1+5
9^0+6
-1,3,3,5,37,()
A.87B.327C.729D.735
(-2)^1+1=-1
(-1)^2+2=3
0^3+3=3
1^4+4=5
2^5+5=37
3^6+6=735
39、74、71、18、()
2^5+7=39
3^4-7=74
4^3+7=71
5^2-7=18
6^1+7=13
8. -2 1 24 253 ()
A..3122 B.2956 C.89 D.43
1^1-3
2^2-3
3^3-3
4^4-3
5^5-3
9. 15 26 15 4 ()
A.3 B.2 C.5 D.0
2^4-1
3^3-1
4^2-1
5^1-1
6^0-1=0
15. 11 33 73 ( ) 231
A.113 B137 C.153 D.177
做差得到:
22,40,64,94
再做差得到:
18,24,30
2^3+3=11
3^3+6=33
4^3+9=73
5^3+12=137
6^3+15=231
29. -5 2 3 4 11()
A72 B30 C9 D2
-5-3=-8=-2^3
2-3=-1=-1^3
3-3=0=0^3
4-3=1=1^3
11-3=8=2^3
8. -2 1 24 253 ()
A..3122 B.2956 C.89 D.43
1^1-3
2^2-3
3^3-3
4^4-3
5^5-3
9. 15 26 15 4 ()
A.3 B.2 C.5 D.0
2^4-1
3^3-1
4^2-1
5^1-1
6^0-1=0
15. 11 33 73 ( ) 231
A.113 B137 C.153 D.177
做差得到:
22,40,64,94
再做差得到:
18,24,30
2^3+3=11
3^3+6=33
4^3+9=73
5^3+12=137
6^3+15=231
22. 3 4 5 11 14
A104 B105 C 106 D107
A^2=B+C
29.-5 2 3 4 11()
A72 B30 C9 D2
-5-3=-8=-2^3
2-3=-1=-1^3
3-3=0=0^3
4-3=1=1^3
11-3=8=2^3
13,15,35,63,80,( )
A63 B86 C80 D99
(1+3)^2-1=15
(1+5)^2-1=35
(3+5)^2-1=63
(6+3)^2-1=80
(8+0)^2-1=63
-3,9,0,81,()
A.-81B.128C.156D.250
A^2-B=C
0,6,78,(),15620
A.240B.252C.1020D.7771
1^2-1=0
2^3-2=6
3^4-3=78
4^5-4=1020
5^6-5=15620
3,-2,11,-12,()
A.9B.-10C.32D.37
2^1+1=3
-2^2+2=-2
2^3+3=11
-2^4+4=-12
2^5+5=37
81,30,15,12,()
A.10B.8C.13D.14
3^4+0=81
3^3+3=30
3^2+6=15
3^1+9=12
3^0+12=13