bcafamilyOdds one Out
154, 235, 352, 460, 324
154
235
324
631
Sum of the digit in each number, except 324 is 10. Ex: 154 = 1+5+4 = 10
275, 132, 462, 396, 327, 891, 121
327
275
121
396
In each number except 327, the middle digit is the sum of the other two. Ex: 275 = 2+5 = 7(middle Number)
3, 5, 11, 14, 17, 21
21
17
14
3
All of them are odd execpt 14
8, 27, 64, 100, 125, 216, 343
27
100
125
343
The pattern is 23, 33, 43, 53, 63, 73. But, 100 is not a perfect cube.
10, 25, 45, 54, 60, 75, 80
10
45
54
75
Each of the numbers except 54 is multiple of 5.
396, 462, 572, 427, 671, 264
396
427
671
264
In each number except 427, the middle digit is the sum of other two.
6, 9, 15, 21, 24, 28, 30
28
21
24
30
Each of the numbers except 28, is a multiple of 3.
1, 4, 9, 16, 23, 25, 36
9
23
25
36
Each of the numbers except 23, is perfect square.
1, 4, 9, 16, 20, 36, 49
1
9
20
49
The pattern is 12, 22, 32, 42, 52, 62, 72. But, instead of 52, it is 20 which to be turned out.
2, 5, 10, 17, 26, 37, 50, 64
50
26
37
64
(1*1)+1 , (2*2)+1 , (3*3)+1 , (4*4)+1 , (5*5)+1 , (6*6)+1 , (7*7)+1 , (8*8)+1
But, 64 is out of pattern.
10, 14, 16, 18, 21, 24, 26
26
24
21
18
Each of the numbers except 21 is an even number.
16, 25, 36, 72, 144, 196, 225
36
72
196
225
Each of the numbers except 72 is a perfect square.
331, 482, 551, 263, 383, 362, 284
263
383
331
551
In each number except 383, the product of first and third digits is the middle one.
41, 43, 47, 53, 61, 71, 73, 81
61
71
73
81
Each of the numbers except 81 is a prime number.
