Verbal Reasoning - Series Completion

Directions to Solve

In this type of questions, one term in the number series is wrong. Find out the wrong term.


16.
2, 6, 24, 96, 285, 568, 567
6
24
285
567
Answer: Option
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.


17.
3, 2, 8, 9, 13, 22, 18, 32, 23, 42
8
9
13
22
Answer: Option
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.


18.
196, 169, 144, 121, 101
101
121
169
196
Answer: Option
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.


19.
56, 58, 62, 70, 84, 118, 182
58
62
84
118
Answer: Option
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.


20.
1, 5, 5, 9, 7, 11, 11, 15, 12, 17
11
12
17
15
Answer: Option
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.