推理90题Word文档格式.docx
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)A.34B.51C.49D.47
9开2次方+2×
2=7
4开2次方+3×
2=8
49开2次方+12×
2=31
0开2次方+17×
2=34
(10)21,17,22,21,31,37,()A.48B.53C.56D61
22-21=1
21-17=4
31-22=9
37-21=16
56-31=25
(11)2,12,23,52,()A61B74C76D82
2=0+2
1+2=3
2+3=5
5+2=7
7+4=11
(12)1,1,2,6,8,11,()A13B17C18D20
1+1+2=4
1+2+6=9
2+6+8=16
6+8+11=25
8+11+17=36
(13)3,3,9,33,93,()A210B213C216D222
3-3=0=1^3-1
9-3=6=2^3-2
33-9=24=3^3-3
93-33=60=4^3-4
213-93=120=5^3-5
(14)(7,28,4),(3,16,16),(10,20,10),(21,?
,9)
A108B63C41D27
(7×
4)/1=28
(3×
16)/3=16
(10×
10)/5=20
(21×
9)/7=27
(15)4,11,17,20,15,1,()A-24,B-16C16D24
(11+17)-2*4=20
(17+20)-2*11=15
(20+15)-17*2=1
(15+1)-20*2=-24
(16)6,9,15,21,33,()A.51B.48C.42D.39
6=2×
3
9=3×
15=5×
21=7×
33=11×
39=13×
(17)2,3,9,36,360,()A.13320B.13322C.12320D12322
(2+1)*3=9
(3+1)*9=36
(9+1)*36=360
(36+1)*360=13320
(18)(14,13,3),(22,25,7),(36,?
23)
A.56B.64C.67D.72
14/2+3*2=13
22/2+7*2=25
36/2+23*2=64
(19)5,32,81,128,125,()A.0B.216C.144D.189
5=5×
1^3
32=4×
2^3
81=3×
3^3
128=2×
4^3
125=1×
5^3
0=0×
6^3
(20)0,7,8,63,24,()A.0B.255C.215D.323
1^2-1=0
2^3-1=7
3*2-1=8
4*3-1=63
5^2-1=24
6^3-1=215
(21).2,6,12,22,36,()A.48B.58C.64D.68
6-2=2*2
12-6=2*3
22-12=2*5
36-22=2*7
58-36=2*11
(22).4,8,32,128,()A.256B.512C1024D.2048
2^2=4
2^3=8
2^5=32
2^7=128
2^11=2048
(23).7,9,20,62,()A.194B.198C.102D.250
7*1+2=9
9*2+2=20
20*3+2=62
62*4+2=250
(24).(12,13,7),(23,31,9),(43,12,10),(37,16,?
)
A.45B.32C.19D.13
1*1+2*3=7
2*3+3*1=9
4*1+3*2=10
3*1+7*6=45
(25).3,1,12,16,30,100,39,()A.177B.189C.98D.169
(3/3)^2=1
(12/3)^2=16
(30/3)^2=100
(39/3)^2=169
(26)11,24,35,42,47,()A.50B.51C.52D.53
24-11=13
35-24=11
42-35=7
47-42=5
50-47=3
(27)13,7,8,17,43,()A.67B.112C.84D.126
7×
3-13=8
8×
3-7=17
17×
3-8=43
43×
3-17=112
(28)3,11/5,15/7,2,21/11,()A.23/11B.23/13C.21/13D.25/14
6/2,11/5,15/7,18/9,21/11,
6-2=4
11-5=6
15-7=8
18-9=9
21-11=10
选项符合分子-分母是合数序列的12
23-11=12选A
(29)(12,7,9),(46,55,1),(12,86,8),(23,13,?
)A.4B.6C.8D.10
看个位数计算
2+7=9
6+5=11
2+6=8
3+3=6
(30)2,6,30,60,130,()A.180B.200C.210D.240
1^3+1=2
2^3-2=6
3^3+3=30
4^3-4=60
5^3+5=130
6^3-6=210
(31)3,4,21,75,288,()A900B1089C1098D1200
(3+4)×
3=21
(4+21)×
3=75
(21+75)×
3=288
(75+288)×
3=1089
(32)7,5,2,3,-1,()A.0B.2C4D-4
A-C=B
7-2=5
5-3=2
2-(-1)=3
3-4=-1
(33)(2,3,13),(3,2,15),(4,5,?
A.19B.31C40D24
2^2+3*3=13
3^2+2*3=15
4^2+5*3=31
(34)0,1,2,9,44,()A.121B.196C.265D300
1=0×
2+1
2=1×
3-1
9=2×
4+1
44=9×
5-1
265=44×
6+1
(35)5,2,1,2,5,()A.2B.5C.8D.10
2-5=-3
1-2=-1
2-1=1
5-2=3
10-5=5
或者隔项减
1-5=-4
2-2=0
5-1=4
10-2=8
(36)、1,3,3,5,4,6,()A.6B.7C.8D.9
1+3=4
3+3=6
3+5=8
5+4=9
4+6=10
6+6=12
合数序列
(37)、-2,-3,0,27,()A.64B.128C.162D.192
-2×
3^0=-2
-1×
3^1=-3
0×
3^2=0
1×
3^3=27
3^4=162
(38)、0,0,1,5,23,()A.46B.97C.108D.119
0!
-1=0
1!
2!
-1=1
3!
-1=5
4!
-1=23
5!
-1=119
!
表示阶乘
(39)59,33,18,8,5,()A.0B.1C.2D.3
59-33=26=5^2+1
33-18=15=4^2-1
18-8=10=3^2+1
8-5=3=2^2-1
5-3=2=1^2+1
(40)、2,5,11,41,911,()
A.756941B.640011C.630011D.670031
(5-2)^2+2=11
(11-5)^2+5=41
(41-11)^2+11=911
(911-41)^2+41=756941(看尾数是否是41)
(41)2,2,0,4,16,()A.48B.64C.128D.144
(2-2)^2=0
(2-0)^2=4
(0-4)^2=16
(4-16)^2=144
(42)5,14,34,76,()A.142B.163C.169D.176
5=2×
14=3×
34=5×
7-1
76=7×
11-1
?
=11×
13-1=142
(43)3,3,6,18,72,()A.256B.288C.360D.384
3/3=1
6/3=2
18/6=3
72/18=4
360/72=5
(44)15,9,3,3,0,()A.1.5B.-1.5C.-2D.-3
(15-9)/2=3
(9-3)/2=3
(3-3)/2=0
(3-0)/2=1.5
(45)0,1,0,7,20,()A.32B.34C.37D.42
0+1+0=1=1^3
1+0+7=8=2^3
0+7+20=27=3^3
7+20+37=64=4^2
(46)-1/2,1/3,4/5,9/7,16/9,()
A.25/13B.23/13C.24/11D.19/11
-1+2=1
1+3=4
4+5=9
9+7=16
16+9=25
23+13=36
选B
(47)1,2,2,5,9,16,()
A.22B.26C.30D.34
1+2+2=5
2+2+5=9
2+5+9=16
5+9+16=30
(48)2,0,0,4,6,()
A.3B.6C.12D.24
-2×
(-1)^5=2
-1×
0^4=0
1^3=0
3^1=6
4^0=3
(49)(6,4,15),(7,2,21),(3,2,1),(5,3,?
)
A.10,B.15C.18D.12
6*4-9=15
7*2+7=21
3*2-5=1
5*3+3=18
/*此题质量不高,可不用做*/
(50)2,1,5,6,31,()
A.45B.67C.72D.78
2^2+1=5
1^2+5=6
5^2+6=31
6^2+31=67
(51)7,28,124,344,()
A.990B.1330C.1432D.1691
3^3+1=28
5^3-1=124
7^3+1=344
11^3-1=1330
(52)37,55,82,127,()
A.193B.188C.172D.165
3+7=10
5+5=10
8+2=10
1+2+7=10
1+7+2=10选C
(53)146,255,366,479,()
A.581B.583C.891D.1000
看中间数字146,255,366,479
4^2=16合成146
5^2=25合成255
6^2=36合成366
7^2=49合成479
选项中只有C满足
(54)1,2,5,14,53,()
A.102B.202C.302D.402
1^2+2×
2=5
2^2+5×
2=14
5^2+14×
2=53
14^2+53×
2=302
(55)2,6,15,28,()
A.55B.56C.58D.60
2=2×
1
6=3×
2
28=7×
4
5=55
(56)1/3,1/3,5/6,3/2,9/4,()
A.31/5B.31/10C.61/20D.61/30
1/3-1/3=0/1
5/6-1/3=1/2
3/2-5/6=2/3
9/4-3/2=3/4
?
-9/4=4/5
=61/20
(57)3,11,32,71,136,()
A.199B.229C.234D.243
1^3+2=3
2^3+3=11
3^3+5=32
4^3+7=71
5^3+11=136
6^3+13=229
(58)2,3,5,11,28,126,()
A.486B.580C.720D.795
2+3^2=11
3+5^2=28
5+11^2=126
11+28^2=795
(59)1,2,3,8,27()
A.164B.200C.216D.224
1*(2+1)=3
2*(3+1)=8
3*(8+1)=27
8*(27+1)=224
公式:
A*(B+1)=C
(60)4,12,24,36,50,()
A.64B.68C.72D.80
1*4=4
2*6=12
3*8=24
4*9=36
5*10=50
6*12=72
4,6,8,9,10,12是合数列
(61)7,13,20,29,38,()
A.50B.51C.52D.54
4^2-3=13
5^2-5=20
6^2-7=29
7^2-11=38
8^2-13=51
(62)21,36,96,41,81,()
A.1B.34C.89D.72
【天字1号即解析】
除以5的余数都是1选A
(63)3,1,8,18,52,()
A.96B.120C.136D.140
(3+1)×
(1+8)×
2=18
(8+18)×
2=52
(18+52)×
2=140
(64)2,0,2,7,7,11,()
A.16B.17C.18D.19
2+0+2=4
0+2+7=9
2+7+7=16
7+7+11=25
7+11+18=36
(65)14,18,24,32,41,51,()
A.63B.65C.66D.67
18-14=4
24-18=6
32-24=8
41-32=9
51-41=10
63-51=12
(66)8,4,4,6,12,30,()
A.40B.48C.72D.90
4/8=0.5
4/4=1
6/4=1.5
12/6=2
30/12=2.5
/30=3?
=90
(67)134,257,415,606,()
A.911B.802C.691D.459
2+5=7
4+1=5
6+0=6
(68)2,-2,6,-2,38,()
A.-34B.40C.48D.56
2^2-(-2)=6
(-2)^2-6=-2
6^2-(-2)=38
(-2)^2-38=-34
(69)2,6,20,42,()
A.80B.96C.110D.120
2^2-2=2
3^2-3=6
7^2-7=42
11^2-11=110
(70)3,3,6,3,33,()
A.-24,B.27C.36D.54
3^2-6=3
6^2-3=33
3^2-33=-24
(71)7,3,16,5,21,5,66,()
A.12B.13C.14D.15
(7-1)/2=3
(16-1)/3=5
(21-1)/4=5
(66-1)/5=13
(72)3,1,4,9,25,()
A.90B.160C.256D.343
(3-1)^2=4
(1-4)^2=9
(4-9)^2=25
(9-25)^2=256
(73)78,57,36,19,10,()
A.2B.1C.0D.-1
7*8+1=57
5*7+1=36
3*6+1=19
1*9+1=10
1*0+1=1
(74)13,16,21,30,45,()
A.57B.68C.72D.75
16-13=3
21-16=5
30-21=9
45-30=15
68-45=23
(75)3/4,1/2,1/3,2/9,()
A.5/12B.1/5C.5/21D.4/27
3/4*2/3=1/2
1/2*2/3=1/3
1/3*2/3=2/9
2/9*2/3=4/27
(76)131,67,31,15,()
A.11B.9C.7D.5
131-67=64=8^2
67-31=36=6^2
31-15=16=4^2
15-11=4=2^2
(77)6,3,8,4,2,8,()
A.2B.4C.6D.8
移动求积看个位数
6×
3=18
8=24
4=32
4×
8=16个位数是6选C
(78)3,2,13,32,103,()
A.222B.302C.316D.256
3+2=5
2+13=15
13+32=45
32+103=135
103+302=405
(79)6,12,12,18,21,()
A.28B.28.5C.35D.38
6+12/2=12
12+12/2=18
12+18/2=21
18+21/2=28.5
(80)0,1,6,23,()
A.86B.81C.76D.61
3^0-1=0
3^1-2=1
3^3-4=23
3^4-5=76
(81)4,12,24,36,50,()
A.64B.60C.72D.76
4=1×
12=2×
6
24=3×
8
36=4×
9
50=5×
10
72=6×
12
4,6,8,9,10,12是合数序列
(82)21,14,17,35,31,52,()
A.58B.66C.72D.78
21+14=35
14+17=31
17+35=52
35+31=66
A+B=D
(83)7,10,18,42,90,()
A.180B.210C.240D.270
【天字