Wrong Term MCQ Quiz - Objective Question with Answer for Wrong Term - Download Free PDF

Last updated on Jun 11, 2025

The wrong term in number series is a type of series question in the logical reasoning section. In this type of problem a number series is given which is containing the wrong term, We have to identify the wrong term in the given sequence which does not follow the sequence logic. The wrong term in a given question of number series can be solved in the following step. First, we have to observe the pattern of given numbers. The pattern can be obtained by subtracting the consecutive terms of the series. if the difference pattern is not connected by the logic for any number then that number is a wrong term in the given series. Sometimes different mathematical operations like addition, subtraction, multiplication, division, square cube, etc. are also required to find the wrong term in the given series

Latest Wrong Term MCQ Objective Questions

Wrong Term Question 1:

Which number is wrong in the series given below?

3, 13, 31, 58, 91, 133 

  1. 133
  2. 58
  3. 31
  4. 91
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : 58

Wrong Term Question 1 Detailed Solution

Given:

Series given is: 3, 13, 31, 58, 91, 111, 

Solution:

The pattern followed here is: x2 + (x + 1)

3 = 12 + (1 + 1) = 3

13 = 32 + (3 + 1) = 13

31 = 52 + (5 + 1) = 31

58 = 72 + (7 + 1) = 49 + 8 = 57  58, is wrong.

91 = 92 + (9 + 1) = 91

111 = 112 + (11 + 1) = 133

So, "57" is the wrong one in this series.

Hence the correct answer is "57".

 Alternate Method

The pattern followed here is: x2 - (x - 1)

3 = 22 - (2 - 1) = 4 -1 = 3

13 = 42 - (4 - 1) = 16 - 3 = 13

31 = 62 - (6 - 1) = 36 - 5 = 31

58 = 82 - (8 - 1) = 64 - 7 = 57 ≠ 58, is wrong.

91 = 102 - (10 - 1) = 100 - 9 = 91

111 = 122 - (12 - 1) = 144 - 11 = 133
Hence the correct answer is "57".

Wrong Term Question 2:

Among the first nine terms of the sequence 5, 7, 11, 19, 31, 67, 131, 259, 515, ..., the number which doesnot fit into the sequence is

  1. 515
  2. 7
  3. 31
  4. 131

Answer (Detailed Solution Below)

Option 3 : 31

Wrong Term Question 2 Detailed Solution

The logic followed here is:

qImage6831fd1efed1818581f9f713

Thus, it should be 35 instead of 31.

Hence, "Option 3" is the correct answer.

Wrong Term Question 3:

One term in the following number series is wrong. Find out the wrong term.

3, 12, 30, 57, 92, 138

  1. 138
  2. 57
  3. 92
  4. 30

Answer (Detailed Solution Below)

Option 3 : 92

Wrong Term Question 3 Detailed Solution

The logic followed here is:

qImage68369a7692dedb37b07183ae

Hence, the correct answer is "Option 3".

Wrong Term Question 4:

Find the number that does not fit into the series.
42, 142, 388, 1252, 5108

  1. 5108
  2. 1252
  3. 388
  4. 142

Answer (Detailed Solution Below)

Option 3 : 388

Wrong Term Question 4 Detailed Solution

The logic followed here is,

qImage682468af90420e90d92ab325IMG - 1362   19-05-25   LK    7

Hence, the correct answer is "Option 3".

Wrong Term Question 5:

Find the wrong term in the series?

8 16 24 35 40 48

  1. 8
  2. 24
  3. 35
  4. 48

Answer (Detailed Solution Below)

Option 3 : 35

Wrong Term Question 5 Detailed Solution

The logic followed here is:

qImage683fd7c8f156f351ccbefd4b

Hence, the correct answer is "Option 3".

Top Wrong Term MCQ Objective Questions

Which of the following numbers does NOT belong to the given number series?

-2, 6, 62, 218, 510, 998

  1. 6
  2. 510
  3. 62
  4. 218

Answer (Detailed Solution Below)

Option 4 : 218

Wrong Term Question 6 Detailed Solution

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The pattern followed here is;

F1 Shraddha Pooja 26.11.2021 D4

218 is the wrong term that doesn't follow the pattern here.

F1 Shraddha Pooja 26.11.2021 D5

There should be 214 in place of 218.

Hence, "218" is the correct answer.

The series given below contains a sequence of numbers. Identify the incorrect combination.

5, 6, 7, 8, 10, 11, 13, 15, 19

  1. 19
  2. 7
  3. 15
  4. 13

Answer (Detailed Solution Below)

Option 4 : 13

Wrong Term Question 7 Detailed Solution

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Given series: 5, 6, 7, 8, 10, 11, 13, 15, 19

To find: incorrect or wrong term

F1  Archana 11-01-22 Savita D1

F1  Archana 11-01-22 Savita D2

  • The given series is a combination of two different series.
  • First series: 5, 7, 10, 13, 19
    • 5 + 2 = 7; 7 + 3 = 10; 10 + 4 = 14; 14 + 5 = 19
    • in the first series, it should be 14 instead of 13.
  • Second series: 6, 8, 11, 15
    • 6 + 2 = 8; 8 + 3 = 11; 11 + 4 = 15.
Hence, 13 is placed incorrectly in place of 14.

Identify the number that does NOT belong to the following series.

1, 16, 35, 60, 85, 116

  1. 85
  2. 116
  3. 60
  4. 35

Answer (Detailed Solution Below)

Option 3 : 60

Wrong Term Question 8 Detailed Solution

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The pattern follows here is:

F12 Prashant TTP 4-2-2021 Swati D15

60 is the wrong number here, instead of this, there would have 58.

Hence, the correct answer is "60".

In the series below one of the terms following the sequence is wrong. Find out the wrong option:

11111, 235656, 39816561, 41625665536

  1. 41625665536
  2. 39816561
  3. 235656
  4. 11111

Answer (Detailed Solution Below)

Option 3 : 235656

Wrong Term Question 9 Detailed Solution

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The pattern followed here is as follows,

Here, each term is a series. In each series the number is followed by its square. and this is repeated generally four times depending upon the number of digits required in each term.. Also, the number if digits in each term are in increasing  order. [They are 5, 6(+1), 8(+2) and 11(+3) respectively]

RRB Group-D Hiteshri 25th Sep 2018 Shift 1 Sunny hindi हिंदी harish images Q5

From the pattern followed “235656” is the wrong term in the series. 

The correct series is as follows,

RRB Group-D Hiteshri 25th Sep 2018 Shift 1 Sunny hindi हिंदी harish images Q5a

Hence, “235656” is the wrong term in the series.

Identify the number that DOES NOT belong to the following series.

69, 130, 220, 348, 517, 734

  1. 69
  2. 130
  3. 220
  4. 348

Answer (Detailed Solution Below)

Option 3 : 220

Wrong Term Question 10 Detailed Solution

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The Pattern followed here is:-

F1 Prashant Shraddha 12.11.2020 D7

Hence, 220 is the wrong term.

Find the wrong term in following series.

5, 8, 19, 26, 50, 98

  1. 19
  2. 26
  3. 50
  4. 98

Answer (Detailed Solution Below)

Option 1 : 19

Wrong Term Question 11 Detailed Solution

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The logic follows here is :-

Given Series is:

5, 8, 19, 26, 50, 98

F1 Prashant Shraddha 12.11.2020 D2

Thus, Clearly 19 is the wrong number in given series as it must be 14.

Hence, the correct answer is "Option 1".

DIRECTIONS: Find the wrong term in the given number series:

1, 2, 12, 63, 316, 1704, 10446

  1. 316
  2. 1704
  3. 63
  4. 12

Answer (Detailed Solution Below)

Option 2 : 1704

Wrong Term Question 12 Detailed Solution

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LOGIC:

Next number = Previous number × n + n; where n = 1, 2, 3, 4, 5

The Pattern followed here is:

F3 Madhuri State Govt. 19.08.2022 D1

In the given series, there has to be 1705 in place of 1704.

Which means 1704 is wrong term in the series.

Hence, the correct answer is "1704".

Identify the number that does NOT belong to the given series of numbers.

46, 31, 22, 17, 30, -32, -89, -179

  1. 30
  2. 22
  3. -32
  4. -89

Answer (Detailed Solution Below)

Option 1 : 30

Wrong Term Question 13 Detailed Solution

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The logic followed here is:

Given series: 46, 31, 22, 17, 30, -32, -89, -179

The series is in decreasing order but 30 is exceptionally greater than 17.

Thus 30 is the wrong term.

Hence, the correct answer is "30".

Find the wrong term in the given series.

20, 19, 33, 95, 375, 1869

  1. 19
  2. 33
  3. 95
  4. 375

Answer (Detailed Solution Below)

Option 1 : 19

Wrong Term Question 14 Detailed Solution

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The Pattern followed here is:-

F1 Prashant Shraddha 12.11.2020 D12

Hence, 19 is the wrong term.

Identify the number that does NOT belong to the following series.

7, 14, 56, 448, 2688, 26880

  1. 448
  2. 2688
  3. 26880
  4. 56

Answer (Detailed Solution Below)

Option 1 : 448

Wrong Term Question 15 Detailed Solution

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The logic followed here is :-

F3 Savita Railways 6-5-22 D29

∴ Here, the number '336' belongs to the series instead of '448'.

Hence, the correct answer is "448".

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