做个数字推理题?3,9,27,81（）A.243B.342C.433D.1358,8,12,24,60（）A.90B.120C.180D.2408,14,26,50（）A.76B.98C.100D.10466,83,102,123（）A.144B.145C.146D.1474,13,40,121,361（）A.1090B.1094C.728D.109393,114,136,159

Question

做个数字推理题?
3,9,27,81（）A.243 B.342 C.433 D.135
8,8,12,24,60（ ）A.90 B.120 C.180 D.240
8,14,26,50（ ）A.76 B.98 C.100 D.104
66,83,102,123 （ ）A.144 B.145 C.146 D.147
4,13,40,121,361（ ）A.1090 B.1094 C.728 D.1093
93,114,136,159（ ）A.180 B.183 C.185 D.187
7,19,22,28,37 （ ）A.47 B.49 C.51 D.53
2/3,7/12,11/30,15/56（ ）A.17/72 B.19/64 C.19/90 D.23/121

Answer 1

3,9,27,81（＝81*3＝243）A.243 B.342 C.433 D.135
3＝3^1
9＝3^2
27＝3^3
81＝3^4
243＝3^5
8,8,12,24,60（180 ）A.90 B.120 C.180 D.240
8/8=1
12/8=1.5
24/12=2
60/24=2.5
x/60=3,则x=180
8,14,26,50（98）A.76 B.98 C.100 D.104
14-8＝6
26-14＝12
50-26＝24
98-50＝48
66,83,102,123 （＝123+23＝146）A.144 B.145 C.146 D.147
83-66＝17
102-83＝19
123-102＝21
146-123＝23
4,13,40,121,361（364+243*3＝1093）A.1090 B.1094 C.728 D.1093
13-4＝9
40-13＝27
121-40＝81
364-121＝243
1093-364＝729
93,114,136,159（＝159+24＝183）A.180 B.183 C.185 D.187
114-93＝21
136-114＝22
159-136＝23
183-159＝24
7,19,22,28,37 （37）A.47 B.49 C.51 D.53
解法1 37
奇数位7、22、37 相差15
偶数位19 28 37 相差9
解法2 49
从19位开始
22-19＝3
28-22＝6
37-28＝9
49-37＝12
2/3,7/12,11/30,15/56（＝（15+4）/（56+34）＝19/90）A.17/72 B.19/64 C.19/90 D.23/121
3/2=1+1/2
7/12=1/3+1/4
11/30=1/5+1/6
15/56=1/7+1/8
1/9+1/10＝19/90