Series Completion Interview Questions and Answers
Question - 91 : - 1236, 2346, 3456, 4566, 5686
A. 1236
B. 3456
C. 4566
D. 5686
Answer - 91 : -
Option D
Explanation:
The correct pattern in the series is + 1110.
So, 5686 is wrong and must be replaced by (4566 + 1110) i.e. 5676.
Question - 92 : - 93, 309, 434, 498, 521, 533
A. 309
B. 434
C. 498
D. 521
Answer - 92 : -
Option D
Explanation:
The correct pattern is + 63, + 53, + 43, + 33, .....
So, 521 is wrong and must be replaced by (498 + 33) i.e. 525.
Question - 93 : - 2, 6, 24, 96, 285, 568, 567
A. 6
B. 24
C. 285
D. 567
Answer - 93 : -
Option B
Explanation:
The correct pattern is x 6 - 6, x 5 - 5, x 4 - 4,.....
So, 24 is wrong and must be replaced by (6 x 5 - 5) i.e. 25.
Question - 94 : - 3, 2, 8, 9, 13, 22, 18, 32, 23, 42
A. 8
B. 9
C. 13
D. 22
Answer - 94 : -
Option B
Explanation:
The given sequence is a combination of two series:
I. 3, 8, 13, 18, 23 and II. 2, 9, 22, 32, 42
The pattern in I is + 5, and the pattern in II is + 10. So, in II, 9 is wrong and must be replaced by (2 + 10) i.e. 12.
Question - 95 : - 196, 169, 144, 121, 101
A. 101
B. 121
C. 169
D. 196
Answer - 95 : -
Option A
Explanation:
The sequence is (14)2, (13)2, (12)2, (11)2, (10)2.
So, 101 is wrong and must be replaced by (10)2 i.e. 100.
Question - 96 : - 56, 58, 62, 70, 84, 118, 182
A. 58
B. 62
C. 84
D. 118
Answer - 96 : -
Option C
Explanation:
The correct pattern is + 2, + 4, + 8, + 16, + 32, + 64 i.e. + 2, + 22, + 23, + 24, + 25, + 26.
So, 84 is wrong and must be replaced by (70 + 16) i.e. 86.
Question - 97 : - 1, 5, 5, 9, 7, 11, 11, 15, 12, 17
A. 11
B. 12
C. 17
D. 15
Answer - 97 : -
Option B
Explanation:
The given sequence is a combination of two series:
I. 1, 5, 7, 11, 12 and II. 5, 9, 11, 15, 17
The pattern in both I and II is + 4, + 2, + 4, + 2. So, 12 is wrong and must be replaced by (11 + 2) i.e. 13.
Question - 98 : - In this type of questions, one term in the number series is wrong. Find out the wrong term.
105, 85, 60, 30, 0, - 45, - 90
A. 105
B. 60
C. 0
D. -45
Answer - 98 : -
Option C
Explanation:
The correct pattern is - 20, - 25, - 30,.....
So, 0 is wrong and must be replaced by (30 - 35) i.e. - 5.
Question - 99 : - 2, 5, 10, 17, 26, 37, 50, 64
A. 17
B. 26
C. 37
D. 64
Answer - 99 : -
Option D
Explanation:
The terms of the series are (12 + 1), (22 + 1), (32 + 1), (42 + 1), (52 + 1), (62 + 1),
(72+1),.....
So, 64 is wrong and must be replaced by (82 + 1) i.e. 65.
Question - 100 : - 125, 126, 124, 127, 123, 129
A. 126
B. 124
C. 123
D. 129
Answer - 100 : -
Option D
Explanation:
The correct pattern is + 1, - 2, + 3, - 4, + 5.
So, 129 is wrong and must be replaced by (123 + 5) i.e. 128.