数字推理120题答案解析(1). 5,6,8,10,14,() A. 12 B. 14 C 16 D 185=2+36=3+38=5+310=7+314=11+316=13+3(2). -11,-4,-3,-2,( ) A.-1, B.0 C.3 D.5(-2)^3-3=-11(-1)^3-3=-40^3-3=-31^3-3=-22^3-3=5(3). 77,63,23,18,41,31,( ) A. -5, B.6 C.12 D.1877+23=100=10^263+18=81=9^223+41=64=8^218+31=49=7^241+(-5)=36=6^2(4) 1,7,19,37,( ) A. 57 B.61 C.66 D.80 7-1=619-7=1237-19=1861-37=24等差数列。
或者是1^2-0=13^2-2=75^2-6=197^2-12=379^2-20=610,2,6,12,20 差为2,4,6,8(5) 2,6,10,18,32,( ) A 57, B. 58 C.61 D.63 6+(2+6)/2=1010+(6+10)/2=1818+(10+18)/2=3232+(18+32)/2=57(6) 2,2,3,5,14,() A. 50 B. 55 C.63 D.69 2×2-1=32×3-1=53×5-1=145×14-1=69(7) 7/3,5/2,6/5,11,9/2,11/7, 8,( ) A 9/7 B 9 C 13/11 D 7/6两两一组(7+3)/(7-3)=10/4=5/2(6+5)/(6-5)=11/1(9+2)/(9-2)=11/78=8/1=(8+1)/(8-1)=9/7(8) 0,10,24,68,120,( ) A 196 B.210 C 216 D 2221^3-1=02^3+2=103^3-3=244^3+4=685^3-5=1206^3+6=222(9) (9,2,7),(4,3,8),(49,12,31),(0,17,?) A.34 B.51 C.49 D. 479开2次方+2×2=74开2次方+3×2=849开2次方+12×2=310开2次方+17×2=34(10) 21,17,22,21,31,37,( ) A.48 B.53 C.56 D 6122-21=121-17=431-22=937-21=1656-31=25(11) 2,12,23,52,() A 61 B 74 C 76 D 822=0+21+2=32+3=55+2=77+4=11(12) 1,1,2,6,8,11,() A 13 B 17 C 18 D 201+1+2=41+2+6=92+6+8=166+8+11=258+11+17=36(13) 3,3,9,33,93,() A 210 B 213 C 216 D 222 3-3=0=1^3-19-3=6=2^3-233-9=24=3^3-393-33=60=4^3-4213-93=120=5^3-5(14) (7,28,4),(3,16,16),(10,20,10),(21,?,9) A 108 B 63 C 41 D 27 (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 -16 C 16 D 24(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. 51 B.48 C.42 D.396=2×39=3×315=5×321=7×333=11×339=13×3(17) 2,3,9,36,360,( ) A.13320 B.13322 C.12320 D12322 (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.56 B.64 C.67 D.7214/2+3*2=1322/2+7*2=2536/2+23*2=64(19) 5,32,81,128,125,( ) A. 0 B.216 C.144 D.1895=5×1^332=4×2^381=3×3^3128=2×4^3125=1×5^30=0×6^3(20) 0,7,8,63,24,( ) A. 0 B.255 C.215 D.3231^2-1=02^3-1=73*2-1=84*3-1=635^2-1=246^3-1=215(21). 2,6,12,22,36,( ) A.48 B.58 C.64 D.686-2=2*212-6=2*322-12=2*536-22=2*758-36=2*11(22). 4,8,32,128,( ) A. 256 B.512 C 1024 D.2048 2^2=42^3=82^5=322^7=1282^11=2048(23). 7,9,20,62,( ) A. 194 B.198 C.102 D.2507*1+2=99*2+2=2020*3+2=6262*4+2=250(24). (12,13,7),(23,31,9),(43,12,10),(37,16,?) A.45 B.32 C.19 D.131*1+2*3=72*3+3*1=94*1+3*2=103*1+7*6=45(25). 3,1,12,16,30,100,39,( ) A. 177 B.189 C.98 D.169 (3/3)^2=1(12/3)^2=16(30/3)^2=100(39/3)^2=169(26) 11,24,35,42,47,( ) A.50 B.51 C.52 D.53 24-11=1335-24=1142-35=747-42=550-47=3(27) 13,7,8,17,43,( ) A. 67 B.112 C.84 D.1267×3-13=88×3-7=1717×3-8=4343×3-17=112(28) 3,11/5,15/7,2,21/11,( ) A.23/11 B.23/13 C.21/13 D.25/14 6/2, 11/5, 15/7, 18/9, 21/11,6-2=411-5=615-7=818-9=921-11=10选项符合分子-分母是合数序列的1223-11=12 选A(29) (12,7,9),(46,55,1),(12,86,8),(23,13,?) A.4 B.6 C.8 D.10 2+7=96+5=112+6=83+3=6(30) 2,6,30,60,130, ( ) A.180 B.200 C.210 D.240 1^3+1=22^3-2=63^3+3=304^3-4=605^3+5=1306^3-6=210(31) 3,4,21,75,288,()A 900 B 1089 C 1098 D 1200(3+4)×3=21(4+21)×3=75(21+75)×3=288(75+288)×3=1089(32) 7,5,2,3,-1,()A.0 B.2 C 4 D -4A-C=B7-2=55-3=22-(-1)=33-4=-1(33) (2,3,13),(3,2,15),(4,5,?)A.19 B.31 C 40 D 242^2+3*3=133^2+2*3=154^2+5*3=31(34) 0,1,2,9,44,()A.121 B.196 C.265 D 3001=0×2+12=1×3-19=2×4+144=9×5-1265=44×6+1(35) 5,2,1,2,5,()A.2 B.5 C.8 D.102-5=-31-2=-12-1=15-2=310-5=5或者隔项减1-5=-42-2=05-1=410-2=8(36)、1,3,3,5,4,6,()A.6 B.7 C.8 D.91+3=43+3=63+5=85+4=94+6=106+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=-30×3^2=01×3^3=272×3^4=162(38)、0,0,1,5,23,()A.46 B.97 C.108 D.119 0!-1=01!-1=02!-1=13!-1=54!-1=235!-1=119!表示阶乘(39) 59,33,18,8,5,()A.0 B.1 C.2 D.359-33=26=5^2+133-18=15=4^2-118-8=10=3^2+18-5=3=2^2-15-3=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.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=2×3-114=3×5-134=5×7-176=7×11-1=11×13-1=142(43) 3,3,6,18,72,( ) A.256 B.288 C.360 D.384 3/3=16/3=218/6=372/18=4360/72=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.420+1+0=1=1^31+0+7=8=2^30+7+20=27=3^37+20+37=64=4^3(46) -1/2, 1/3, 4/5, 9/7, 16/9, ( )A. 25/13B.23/13C.24/11D.19/11-1+2=11+3=44+5=99+7=1616+9=2523+13=36选B(47) 1, 2, 2, 5, 9, 16, ( )A.22B.26C.30D.341+2+2=52+2+5=92+5+9=165+9+16=30(48) 2, 0, 0, 4, 6, ( )A.3B.6C.12D.24-2×(-1)^5=2-1×0^4=00×1^3=01×2^2=42×3^1=63×4^0=3(49) (6, 4, 15) , (7,2,21), (3,2,1), (5,3,? )A.10,B. 15C.18D. 126*4-9=157*2+7=213*2-5=15*3+3=18(50) 2, 1, 5, 6, 31, ( )A. 45B.67C.72D.782^2+1=51^2+5=65^2+6=316^2+31=67(51) 7, 28, 124, 344, ( )A.990B.1330C.1432D.16913^3+1=285^3-1=1247^3+1=34411^3-1=1330(52) 37, 55, 82, 127, ( )A.193B.188C.172D.1653+7=105+5=108+2=101+2+7=101+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1465^2=25 合成2556^2=36 合成3667^2=49 合成479选项中只有C满足(54) 1, 2, 5, 14, 53, ( )A. 102B.202C.302D.4021^2+2×2=52^2+5×2=145^2+14×2=5314^2+53×2=302(55) 2,6,15,28,( )A.55B.56C.58D.602=2×16=3×215=5×328=7×4=11×5=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=0/15/6-1/3=1/23/2-5/6=2/39/4-3/2=3/4=61/20(57) 3, 11, 32, 71, 136, ( )A.199B.229C.234D.2431^3+2=32^3+3=113^3+5=324^3+7=715^3+11=1366^3+13=229(58) 2, 3, 5, 11, 28, 126, ( )A.486B.580C.720D.7952+3^2=113+5^2=285+11^2=12611+28^2=795(59) 1, 2, 3, 8, 27 ( )A.164B.200C.216D.2241*(2+1)=32*(3+1)=83*(8+1)=278*(27+1)=224公式:A*(B+1)=C(60) 4, 12, 24, 36, 50, ( )A. 64B.68C.72D.801*4=42*6=123*8=244*9=365*10=506*12=724,6,8,9,10,12是合数列(61) 7, 13, 20, 29, 38, ( )A. 50B.51C.52D.543^2-2=74^2-3=135^2-5=206^2-7=297^2-11=388^2-13=51(62) 21, 36, 96, 41, 81, ( )A. 1B.34C. 89D.72除以5的余数都是1 选A(63) 3, 1, 8,18, 52,( )A. 96B.120C.136D.140 (3+1)×2=8(1+8)×2=18(8+18)×2=52(18+52)×2=140(64) 2,0,2,7,7,11, ( )A. 16B.17C.18D.192+0+2=40+2+7=92+7+7=167+7+11=257+11+18=36(65) 14, 18, 24, 32, 41, 51, ( )A. 63B.65C.66D.6718-14=424-18=632-24=841-32=951-41=1063-51=12合数序列(66) 8, 4, 4, 6, 12, 30, ( )A.40B.48C.72D.904/8=0.54/4=16/4=1.512/6=230/12=2.5/30=3 ?=90(67) 134, 257, 415, 606, ( )A.911B.802C.691D.4591+3=42+5=74+1=56+0=64+5=9(68) 2, -2, 6, -2, 38, ( )A.-34B. 40C. 48D.562^2-(-2)=6(-2)^2-6=-26^2-(-2)=38(-2)^2-38=-34(69) 2,6,20,42, ( )A.80B.96C.110D.1202^2-2=23^2-3=65^2-5=207^2-7=4211^2-11=110(70) 3,3,6,3,33,( )A.-24,B.27C.36D.543^2-3=63^2-6=36^2-3=333^2-33=-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.-17*8+1=575*7+1=363*6+1=191*9+1=101*0+1=1(74) 13,16,21,30,45,()A. 57B.68C.72D.7516-13=321-16=530-21=945-30=1568-45=23(75) 3/4,1/2,1/3,2/9,()A.5/12B.1/5C.5/21D.4/273/4 * 2/3=1/21/2 * 2/3=1/31/3 * 2/3=2/92/9 * 2/3=4/27(76) 131,67,31,15,()A.11B. 9C.7D.5131-67=64=8^267-31=36=6^231-15=16=4^215-11=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=183×8=248×4=324×2=82×8=16 个位数是6 选C(78) 3,2,13,32,103,()A.222B.302C.316D.2563+2=52+13=1513+32=4532+103=135103+302=405(79) 6,12,12,18,21,()A.28B.28.5C.35D.386+12/2=1212+12/2=1812+18/2=2118+21/2=28.5(80) 0,1,6,23,()A.86B.81C.76D.613^0-1=03^1-2=13^2-3=63^3-4=233^4-5=76(81) 4,12,24,36,50,()A. 64B.60C.72D.764=1×412=2×624=3×836=4×950=5×1072=6×124,6,8,9,10,12 是合数序列(82) 21,14,17,35,31,52,()A.58B.66C.72D.7821+14=3514+17=3117+35=5235+31=66A+B=D(83) 7 ,10,18,42,90,()A. 180B.210C.240D.27010-7=3=2^2-118-10=8=3^2-142-18=24=5^2-190-42=48=7^2-1(84) 25, 35, 54, 73, 92, ( ) A.66 B.97 C.98 D.10925:2+5=735:3+5=854:5+4=973:7+3=1092:9+2=1166:6+6=12(85) 4, 2, 3, 7, 14, ( ) A.20 B.24 C.26 D.282-4=-23-2=17-3=414-7=724-14=10-2,1,4,7,10 是等差数列差值是3(86) -1, 3, 3, 5, 37, ( ) A.87 B.327 C.729 D.735(-2)^1+1=-1(-1)^2+2=30^3+3=31^4+4=52^5+5=373^6+5=735(87) 3/4, 7/11, 18/29, 47/76, ( ) A.94/101 B.123/199 C.113/171 D.7/8 将所有分子分母都联系起来看3,4,7,11,18,29,47,76,?,?3+4=74+7=117+11=18..........47+76=12376+123=199(88) -1,0,27,512,()A.164 B.1291 C.3255 D.9375-1=(-1)*1^10=0*2^227=1*3^3512=2*4^49375=3*5^5(89) 7,10,16,22,()A.31 B.32 C.33 D.343*2+1=73*3+1=103*5+1=163*7+1=223*11+1=34(90) 30,31,54,59,()A.68 B.70 C.78 D.865^2+5=306^2-5=317^2+5=548^2-5=599^2+5=8691. C 等差数列。