Odd Man Out and Series MCQs : This section focuses on the "Odd Man Out and Series". These Multiple Choice Questions (MCQs) should be practiced to improve the Odd Man Out and Series skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
Find the odd man out. : 331, 482, 551, 263, 383, 362, 284
A. 263
B. 383
C. 362
D. 284
Question 2
Insert the missing number : 10, 5, 13, 10, 16, 20, 19, (....)
A. 22
B. 40
C. 38
D. 23
Question 3
Insert the missing number : 8, 24, 12, 36, 18, 54, (....)
A. 27
B. 108
C. 68
D. 72
Question 4
Insert the missing number : 15, 31, 63, 127, 255, (....)
A. 513
B. 511
C. 517
D. 523
Question 5
Find out the wrong number in the series : 3, 7, 15, 27, 63, 127, 255
A. 7
B. 15
C. 27
D. 63
Question 6
Find Odd Man Out : 16, 25, 36, 72, 144, 196, 225
A. 36
B. 72
C. 196
D. 225
Question 7
Find the odd man out. : 1, 4, 9, 16, 23, 25, 36
A. 9
B. 23
C. 25
D. 36
Question 8
Find the odd man out. : 835, 734, 642, 751, 853, 981, 532
A. 751
B. 853
C. 981
D. 532
Question 9
Insert the missing number : 8, 7, 11, 12, 14, 17, 17, 22, (....)
A. 27
B. 20
C. 22
D. 24
Question 10
3, 5, 11, 14, 17, 21
A. 21
B. 17
C. 14
D. 3
Question 11
1, 4, 9, 16, 20, 36, 49
A. 1
B. 9
C. 20
D. 49
Question 12
Insert the missing number : 16, 33, 65, 131, 261, (....)
A. 523
B. 521
C. 613
D. 721
Question 13
16, 25, 36, 72, 144, 196, 225
A. 36
B. 72
C. 196
D. 225
Question 14
Find out the wrong number in the series : 10, 26, 74, 218, 654, 1946, 5834
A. 74
B. 218
C. 654
D. 1946
Question 15
Insert the missing number : 1, 8, 27, 64, 125, 216, (....)
A. 354
B. 343
C. 392
D. 245
Question 16
Find out the wrong number in the series : 3, 7, 15, 39, 63, 127, 255, 511
A. 7
B. 15
C. 39
D. 63
Question 17
Find out the wrong number in the series : 64, 71, 80, 91, 104, 119, 135, 155
A. 91
B. 104
C. 119
D. 135
Question 18
Find Odd Man Out : 3, 5, 7, 12, 17, 19
A. 19
B. 17
C. 12
D. 5
Question 19
Find out the wrong number in the given sequence of numbers : 25, 36, 49, 81, 121, 169, 225
A. 36
B. 49
C. 121
D. 169
Question 20
Find out the wrong number in the series : 40960, 10240, 2560, 640, 200, 40, 10
A. 40960
B. 10240
C. 2560
D. 640
Question 21
Find out the wrong number in the given sequence of numbers : 56, 72, 90, 110, 132, 150
A. 72
B. 110
C. 132
D. 150
Question 22
Find the odd man out. : 6, 9, 15, 21, 24, 28, 30
A. 28
B. 21
C. 24
D. 30
Question 23
Find the odd man out. : 16, 25, 36, 72, 144, 196, 225
A. 36
B. 72
C. 196
D. 225
Question 24
Find out the wrong number in the series : 15, 16, 34, 105, 424, 2124, 12756
A. 34
B. 105
C. 424
D. 2124
Question 25
1, 4, 9, 16, 23, 25, 36
A. 9
B. 23
C. 25
D. 36
Question 26
10, 14, 16, 18, 21, 24, 26
A. 26
B. 24
C. 21
D. 18
Question 27
Find Odd Man Out : 2, 5, 10, 17, 26, 37, 50, 64
A. 50
B. 26
C. 37
D. 64
Question 28
Find out the wrong number in the given sequence of numbers : 36, 54, 18, 27, 9, 18.5, 4.5
A. 4.5
B. 18.5
C. 54
D. 18
Question 29
Find out the wrong number in the given sequence of numbers : 105, 85, 60, 30, 0, -45, -90
A. 0
B. 85
C. -45
D. 60
Question 30
Find Odd Man Out : 3, 5, 11, 14, 17, 21
A. 21
B. 17
C. 14
D. 3
Question 31
Find the odd man out. : 41, 43, 47, 53, 61, 71, 73, 81
A. 61
B. 71
C. 73
D. 81
Question 32
8, 27, 64, 100, 125, 216, 343
A. 27
B. 100
C. 125
D. 343
Question 33
Find the odd man out. : 2, 5, 10, 17, 26, 37, 50, 64
A. 50
B. 26
C. 37
D. 64
Question 34
Find out the wrong number in the series : 445, 221, 109, 46, 25, 11, 4
A. 221
B. 109
C. 46
D. 25
Question 35
Find the odd man out. : 396, 462, 572, 427, 671, 264
A. 396
B. 427
C. 671
D. 264
Question 36
Insert the missing number : 11, 13, 17, 19, 23, 29, 31, 37, 41, (....)
A. 43
B. 47
C. 53
D. 51
Question 37
Find out the wrong number in the given sequence of numbers : 1, 8, 27, 64, 124, 216, 343
A. 8
B. 27
C. 64
D. 124
Question 38
Find the odd man out. : 10, 14, 16, 18, 21, 24, 26
A. 26
B. 24
C. 21
D. 18
Question 39
Find out the wrong number in the given sequence of numbers : 6, 13, 18, 25, 30, 37, 40
A. 25
B. 30
C. 37
D. 40
Question 40
2, 5, 10, 17, 26, 37, 50, 64
A. 50
B. 26
C. 37
D. 64
Question 41
Find the odd man out. : 1, 4, 9, 16, 20, 36, 49
A. 1
B. 9
C. 20
D. 49
Question 42
Find out the wrong number in the series : 196, 169, 144, 121, 100, 80, 64
A. 144
B. 121
C. 100
D. 80
Question 43
41, 43, 47, 53, 61, 71, 73, 81
A. 61
B. 71
C. 73
D. 81
Question 44
Find out the wrong number in the given sequence of numbers : 8, 13, 21, 32, 47, 63, 83
A. 47
B. 63
C. 32
D. 83
Question 45
331, 482, 551, 263, 383, 362, 284
A. 263
B. 383
C. 331
D. 551
Question 46
Find out the wrong number in the series : 190, 166, 145, 128, 112, 100, 91
A. 190
B. 166
C. 145
D. 128
Question 47
Insert the missing number : 3, 7, 6, 5, 9, 3, 12, 1, 15, (....)
A. 18
B. 13
C. -1
D. 3
Question 48
396, 462, 572, 427, 671, 264
A. 396
B. 427
C. 671
D. 264
Question 49
Find out the wrong number in the series : 6, 12, 48, 100, 384, 768, 3072
A. 12
B. 48
C. 100
D. 384
Question 50
Find out the wrong number in the given sequence of numbers : 4, 6, 8, 9, 10, 11, 12
A. 10
B. 11
C. 12
D. 9
Question 51
Insert the missing number : 4, -8, 16, -32, 64, (....)
A. 128
B. -128
C. 192
D. -192
Question 52
Find the odd man out. : 10, 25, 45, 54, 60, 75, 80
A. 10
B. 45
C. 54
D. 75
Question 53
Insert the missing number : 2, 4, 12, 48, 240, (....)
A. 960
B. 1440
C. 1080
D. 1920
Question 54
835, 734, 642, 751, 853, 981, 532
A. 751
B. 853
C. 981
D. 532
Question 55
Find out the wrong number in the series : 2880, 480, 92, 24, 8, 4, 4
A. 480
B. 92
C. 24
D. 8
Question 56
Find out the wrong number in the given sequence of numbers : 1, 2, 6, 15, 31, 56, 91
A. 31
B. 91
C. 56
D. 15
Question 57
Find the odd man out. : 3, 5, 11, 14, 17, 21
A. 21
B. 17
C. 14
D. 3
Question 58
3, 5, 7, 12, 17, 19
A. 19
B. 17
C. 5
D. 12
Question 59
Find out the wrong number in the series : 7, 8, 18, 57, 228, 1165, 6996
A. 8
B. 18
C. 57
D. 228
Question 60
Find out the wrong number in the given sequence of numbers : 125, 127, 130, 135, 142, 153, 165
A. 130
B. 142
C. 153
D. 165
Question 61
Insert the missing number : 1, 4, 9, 16, 25, 36, 49, (....)
A. 54
B. 56
C. 64
D. 81
Question 62
Insert the missing number : 2, 6, 12, 20, 30, 42, 56, (....)
A. 61
B. 64
C. 72
D. 70
Question 63
Find out the wrong number in the series : 1, 1, 2, 6, 24, 96, 720
A. 720
B. 96
C. 24
D. 2
Question 64
Find out the wrong number in the given sequence of numbers : 46080, 3840, 384, 48, 24, 2, 1
A. 1
B. 2
C. 24
D. 384
Question 65
Find out the wrong number in the series : 19, 26, 33, 46, 59, 74, 91
A. 26
B. 33
C. 46
D. 59
Question 66
10, 25, 45, 54, 60, 75, 80
A. 10
B. 45
C. 54
D. 75
Question 67
Find the odd man out. : 3, 5, 7, 12, 17, 19
A. 19
B. 17
C. 5
D. 12
Question 68
Find out the wrong number in the given sequence of numbers : 22, 33, 66, 99, 121, 279, 594
A. 33
B. 121
C. 279
D. 594
Question 69
6, 9, 15, 21, 24, 28, 30
A. 28
B. 21
C. 24
D. 30
Question 70
Find out the wrong number in the given sequence of numbers : 582, 605, 588, 611, 634, 617, 600
A. 634
B. 617
C. 605
D. 600
Question 71
Find Odd Man Out : 6, 9, 15, 21, 24, 28, 30
A. 28
B. 21
C. 24
D. 30
Question 72
Find out the wrong number in the given sequence of numbers : 52, 51, 48, 43, 34, 27, 16
A. 27
B. 34
C. 43
D. 48
Question 73
Find the odd man out. : 8, 27, 64, 100, 125, 216, 343
A. 27
B. 100
C. 125
D. 343
Question 74
Find out the wrong number in the given sequence of numbers : 5, 16, 6, 16, 7, 16, 9
A. 9
B. 7
C. 6
D. None of these
Question 75
Insert the missing number : 7, 26, 63, 124, 215, 342, (....)
A. 481
B. 511
C. 391
D. -421
Question 76
Find out the wrong number in the series : 1, 3, 10, 21, 64, 129, 356, 777
A. 21
B. 64
C. 129
D. 356
Question 77
Insert the missing number : 5, 10, 13, 26, 29, 58, 61, (....)
A. 122
B. 64
C. 125
D. 128