Verbal Reasoning

Number Series

Verbal Reasoning Exercise Mode

Number Series

Practice and master this topic with our carefully crafted questions.

10 Questions
15 Minutes
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QUEST ? !
Directions to Solve

In "Number Series" question, a number series is given with one term missing. Choose the correct alternative that will same pattern and replace the question mark in the given series.

Question 41
In each of the following questions, one term in the number series is wrong. Find out the wrong term.
4, 10, 22, 46, 96, 190, 382

A
4
B
10
C
96
D
382
Correct Answer: Option C

The correct pattern is + 6, + 12, + 24, + 48, + 96, + 192. So, 96 is wrong and must be replaced by ( 46 + 48) i. e. 94.

Question 42
In each of the following questions, one term in the number series is wrong. Find out the wrong term.
1, 3, 12, 25, 48

A
3
B
12
C
25
D
48
Correct Answer: Option C

The terms of the series are ( 1² - 0² ), ( 2² - 1² ), (4² - 2² ), (6² - 3²), and ( 8² - 4² ). So, 25 is wrong and must be replaced by ( 6²- 3² ) i.e. 27.

Question 43
In each of the following questions, one term in the number series is wrong. Find out the wrong term.
380, 188, 92, 48, 20, 8, 2

A
8
B
20
C
48
D
188
Correct Answer: Option C

The correct pattern is - 192, - 96, - 48, - 24, - 12, - 6. So, 48 is wrong and must be replaced by ( 92 - 48 ) i. e. 44.

Question 44
In each of the following questions, one term in the number series is wrong. Find out the wrong term.
1, 3, 10, 21, 64, 129, 356, 777

A
21
B
129
C
10
D
356
Correct Answer: Option D

The correct pattern is × 2 + 1, × 3 + 1, × 2 + 1, × 3 + 1, ....... So, 356 is wrong and must be replaced by ( 129 × 3 + 1) i. e. 388.

Question 45
In each of the following questions, one term in the number series is wrong. Find out the wrong term.
2, 6, 24, 96, 285, 568, 567

A
6
B
24
C
285
D
567
Correct Answer: Option B

The correct pattern is × 6 - 6, × 5 - 5, × 4 - 4, ...... So, 24 is wrong and must be replaced by ( 6 × 5 - 5) i. e. 25.

Question 46
In each of the following questions, one term in the number series is wrong. Find out the wrong term.
5, 10, 40, 80, 320, 550, 2560

A
80
B
320
C
550
D
2560
Correct Answer: Option C

The correct pattern is × 2, × 4, × 2, × 4, ........ So, 550 is wrong and must be replaced by ( 320 × 2 ) i. e. 640.

Question 47
In each of the following questions, one term in the number series is wrong. Find out the wrong term.
93, 309, 434, 498, 521, 533

A
309
B
434
C
498
D
521
Correct Answer: Option D

The correct pattern is + 6³, + 5³, + 4³, + 3³, ........ So, 521 is wrong and must be replaced by ( 498 + 3³ ) i. e. 525.

Question 48
In each of the following questions, one term in the number series is wrong. Find out the wrong term.
3, 4, 10, 32, 136, 685, 4116

A
10
B
32
C
136
D
4116
Correct Answer: Option B

The correct pattern is × 1+ 1, × 2 + 2, × 3 + 3, × 4 + 4, ..... So, 32 is wrong and must be replaced by ( 10 × 3 + 3) i. e. 33.

Question 49
In each of the following questions, one term in the number series is wrong. Find out the wrong term.
89, 78, 86, 80, 85, 82, 83

A
83
B
82
C
86
D
78
Correct Answer: Option C

The correct pattern is - 11, + 9, - 7, + 5, - 3, + 1. So, 86 is wrong and must be replaced by ( 78+ 9 ) i. e. 87.

Question 50
In each of the following questions, one term in the number series is wrong. Find out the wrong term.
1236, 2346, 3456, 4566, 5686

A
1236
B
3456
C
4566
D
5686
Correct Answer: Option D

The correct pattern in the series is + 1110. So, 5686 is wrong and must be replaced by ( 4566 + 1110 ) i. e.5676.