经典数字推理题库120题(专项练习答案解析)(2)

2019-08-29 00:05

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.2 B.5 C.8 D.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.6 B.7 C.8 D.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.64 B.128 C.162 D.192 -2×3^0=-2 -1×3^1=-3 0×3^2=0 1×3^3=27

2×3^4=162

(38)、0,0,1,5,23,( ) A.46 B.97 C.108 D.119 0!-1=0 1!-1=0 2!-1=1 3!-1=5 4!-1=23 5!-1=119 !表示阶乘

(39) 59,33,18,8,5,() A.0 B.1 C.2 D.3

6

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.756941 B.640011 C.630011 D.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.48 B.64 C.128 D.144 (2-2)^2=0 (2-0)^2=4 (0-4)^2=16 (4-16)^2=144

(42) 5,14,34,76,( ) A.142 B.163 C.169 D.176 5=2×3-1

14=3×5-1 34=5×7-1 76=7×11-1

?=11×13-1=142

(43) 3,3,6,18,72,( ) A.256 B.288 C.360 D.384 3/3=1 6/3=2 18/6=3 72/18=4 360/72=5

(44) 15,9,3,3,0,( ) A.1.5 B.-1.5 C. -2 D.-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.32 B.34 C.37 D.42 0+1+0=1=1^3 1+0+7=8=2^3 0+7+20=27=3^3 7+20+37=64=4^3

7

(46) -1/2, 1/3, 4/5, 9/7, 16/9, ( ) A. 25/13 B.23/13 C.24/11 D.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.22 B.26 C.30 D.34 1+2+2=5 2+2+5=9 2+5+9=16 5+9+16=30

(48) 2, 0, 0, 4, 6, ( ) A.3 B.6 C.12 D.24 -2×(-1)^5=2 -1×0^4=0 0×1^3=0 1×2^2=4 2×3^1=6 3×4^0=3

(49) (6, 4, 15) , (7,2,21), (3,2,1), (5,3,? ) A.10, B. 15 C.18 D. 12 6*4-9=15 7*2+7=21 3*2-5=1 5*3+3=18

(50) 2, 1, 5, 6, 31, ( ) A. 45 B.67 C.72 D.78 2^2+1=5 1^2+5=6 5^2+6=31 6^2+31=67

(51) 7, 28, 124, 344, ( )

A.990 B.1330 C.1432 D.1691

8

2^3-1=7 3^3+1=28 5^3-1=124 7^3+1=344 11^3-1=1330

(52) 37, 55, 82, 127, ( ) A.193 B.188 C.172 D.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. 581 B.583 C.891 D.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. 102 B.202 C.302 D.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.55 B.56 C.58 D.60 2=2×1 6=3×2 15=5×3 28=7×4 ?=11×5=55

(56) 1/3, 1/3, 5/6, 3/2, 9/4, ( ) A.31/5 B.31/10 C.61/20 D.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

?-9/4=4/5

?=61/20

(57) 3, 11, 32, 71, 136, ( ) A.199 B.229 C.234 D.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.486 B.580 C.720 D.795 2+3^2=11 3+5^2=28 5+11^2=126 11+28^2=795

(59) 1, 2, 3, 8, 27 ( ) A.164 B.200 C.216 D.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. 64 B.68 C.72 D.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. 50 B.51 C.52 D.54 3^2-2=7 4^2-3=13 5^2-5=20 6^2-7=29

10


经典数字推理题库120题(专项练习答案解析)(2).doc 将本文的Word文档下载到电脑 下载失败或者文档不完整,请联系客服人员解决!

下一篇:八年级数学上册 2.8 直角三角形全等的判定教案 浙教版

相关阅读
本类排行
× 注册会员免费下载(下载后可以自由复制和排版)

马上注册会员

注:下载文档有可能“只有目录或者内容不全”等情况,请下载之前注意辨别,如果您已付费且无法下载或内容有问题,请联系我们协助你处理。
微信: QQ: