**Campus Reasoning questions on Coding, Number Series & Odd man out**

**What is Campus Recruitment Process?**

Generally, a Campus Placement Process has four components:

* Pre Placement Talk

* Aptitude test

* Group Discussion

* Interview which can be various combinations of Technical and HR rounds

**Aptitude Test for Placements:**

The Aptitude test consists of basic problems in **quantitative ability, logical reasoning, and verbal ability**. The primary objective of this test is to check the problem-solving skills of the test-taker. Any job out there is the problem-solving skills. It is essential to understand what the problem is and how the problem should be solved. So, the application of the learning is the Aptitude test.

Please read the below blogs to know the detailed campus recruitment process of respective companies:

**Tips and Tricks to solve the Personal Interviews Questions for Campus Recruitment Test**

- If you want to stand out & beat the competition in your Campus Placements, the first step is to ace the Written Aptitude Test. Reasoning Aptitude contributes a lot to increase your scores. No aptitude test is complete without questions based on coding, series & odd man out
- Methods of learning in one chapter can be used in other chapters
- Whether the Question is simple or difficult you can know the options.
- Focus on all areas in reasoning will help you crack Reasoning section

Click on below video session by P V Rama Sasank (IIM-Calcutta) having 10+ years of experience in Reasoning Ability, to know more about the topics (Coding, Number series and Odd Man Out)

The Following questions are based on coding, series & odd:

**Series, Missing Term-Addition Based:**

**1. 8, 12, 14, 18, 20, 24, __**

A. 30

B. 31

C. 28

D. 26

**Answer: D**

**Explanation:**

The given series in form 8, 12, 14, 18, 20, 24, _

The difference between the series in form 4, 2, 4, 2, 4, 2

So the next term should be added +2

so it will be 26.

**2. 840, 820, 700, 780, 540, __**

A. 210

B. 200

C. 220

D. 320

**Answer:** **C**

**Explanation:**

The given series are in form 840, 820, 780, 700, 540, __

The difference between them is 20, 40, 80, 160, 320

Every difference term is multiplied by 2

So, 160 becomes 320

The Next term will be (540-320)=220.

**3. 8, 18, 29, 42, 58, __**

A. 68

B. 63

C. 78

D. 84

**Answer:** **C**

**Explanation:**

The given series are in form 8, 18, 29, 42, 58, __

The difference between them is 10, 11, 13, 16, 20

The difference between 10,11= 1

The difference between 11,13= 2

The difference between 13,16= 3

The difference between 16,20= 4

So the next term in given series is (58+20)= 78

**4. 1000, 992, 965, 901, ___**

A. 667

B. 676

C. 776

D. 767

**Answer:** **C**

**Explanation:**

The difference between them is 8, 27, 64, 125

The differences are in form 2³, 3³, 4³, 5³

So the next term should be (901-125)= 776

**5. 9, 40, 77, 118, 161, ____**

A. 200

B. 207

C. 204

D. 210

**Answer:** **C**

**Explanation:**

The Level 1 difference between them is 31, 37, 41, 43,

The Level 2 difference between them is 6, 4, 2, 0

In the Level 2, the next difference between them is 0

The Level 1 differences are 31, 37, 41, 43, (43+0)

So the series will be in form 9, 40, 77, 118, 161, (161+43)

The next term will be 201

**6. 1, 10, 33, 76, 145, __**

A. 230

B. 236

C. 246

D. 252

**Answer:** **C**

**Explanation:**

The Level 1 difference between them is 9, 23, 43, 69

The Level 2 difference between them is 14, 20, 26,

The Level 3 difference between them is 6

The Level 2 the next term will be is 14, 20, 26, (26+6)

The Level 2 the next term will be is 14, 20, 26, 32

The Level 1 the next term will be is 9, 23, 43, 69, (69+32)

The Level 1 the next term will be is 9, 23, 43, 69, 101

The next term in the given series is 145+101=246

**Series-missing term-Multiplication Based:**

**7. 6, 15, 35, 77, 163,__**

A. 200

B. 221

C. 324

D. 337

**Answer:** **D**

**Explanation:**

The series in the format of 6*2+3=15

15*2+5=35

35*2+7=77

77*2+9=163

163*2+11=337

The next term in the series is 337

**8. 60, 120, 210, 315, __, 393.75**

A. 465.5

B. 315

C. 350

D. 393.75

**Answer:** **D**

**Explanation:**

The series in the format 60*(8/4)=120

120*(7/4)=210

210*(6/4)=315

315*(5/4)=393.75

393.75*(4/4)=393.75

**9. 5,17,37,113, 229, __.**

A. 625

B. 620

C. 689

D. 628

**Answer:** **C**

**Explanation:**

The series in form 5* 3+2=17

17*2+3=37

37*3+2=113

113*2+3=229

229*3+2=689

**10. 10. 3, 7, 16, 35, 74, 153, __.**

A. 300

B. 312

C. 212

D. 316

**Answer:** **B**

**Explanation:**

The series in the format 3*2+1=7

7*2+2=16

16*2+3=35

35*2+4=74

74*2+5=153

153*2+6=312

**Series-Missing Term-Mixed series Based:**

**11. 6, 12, 9, 18, 15, 30, 27,__.**

A. 54

B. 24

C. 85

D. 30

**Answer:** **A**

**Explanation:**

In the given series there are two series

In which one is odd series and another is even series

The odd series is 6,9,15,27

The even series is 12, 18, 30

The differences in the even series are 6,12, (12*2)

The even series is 12,18, 30, (30+24).

The next term in the even series is 54.

**12. 41, 47, 53, 59, 61,__.**

A. 63

B. 65

C. 67

D. 69

**Answer:** **C**

**Explanation:**

In the given series there are two series

In which one is odd series and another is even series

The odd series is 41, 53, 61

The even series is 47, 59

The odd series in the form 41+12=53

53+8=61

61+4=65

The given even series in the form 49+12=59

59+8=67

The next term in the series is 67

**13. 10, 2, 14, 3, 18, 5, 22,__.**

A. 26

B. 7

C. 8

D. cannot be determined.

**Answer:** **D**

**Explanation:**

In the given series there are two series

In which one is odd series and another is even series

The odd series is 10,14,18,22,

The even series is 2,3,5.

In the even series, the next term will be either 7 or 8

The even series in the order prime numbers so it will be 7

The even series in the order 3-2=1

5-3=2

8-5=3

so we cannot determine the answer.

**14. A, D, H, M,__**

A. V

B. U

C. S

D. X

**Answer:** **C**

**Explanation:**

The letters in the series A, D, H, M

Convert the alphabets into the numbers 1, 4, 8,13

The difference between the numbers is (4-1)=3

(8-4)=4

(13-8)=5

The next difference should be 6

The difference of the numbers are in form 1,4,8,13,(13+6)

The next alphabet is 'S'

**15. AN, BO, CP, __, ER**

A. DQ

B. DS

C. FQ

D. FS

**Answer:** **A**

**Explanation:**

The first series is A, B, C, D, E

The second series is N, O, P, Q, R.

So the middle term is DQ

**16. Z82, T73, O65, K57, ____.**

A. G44

B. I42

C. H42

D. H44

**Answer:** **C**

**Explanation:**

The Alphabets series are Z, T, O, K

Convert the alphabets into the numbers 26, 20, 15, 11

The difference between them is 26-20=6

20-15=5

15-11=4

The next difference term should be 3

So the term 11-3=8

The 8th term will be H

The number series is divided into two series

The first series is 8, 7, 6, 5, 4

The next term in the first series is 4

The second series is 2, 3, 5, 7.

The second series is prime numbers

The next term should be the prime number.

According to the question, the next term is H42

**Series-Exponent &Miscellaneous based:**

**17. 15, 80, 255, 624,__.**

A. 998

B. 1023

C. 1295

D. 2400

**Answer:** **C**

**Explanation:**

The series in the form 2^4-1=15

3^4-1=80

4^4-1=256

5^4-1=625

6^4-1=1295

The next term in the series is 1295

**18. 1, 12, 59, 290,__.**

A. 1017

B. 1024

C. 1029

D. 908

**Answer:** **A**

**Explanation:**

The series in the form 4^1-3=1

4^2-4=12

4^3-5=59

4^4-6=290

4^5-7=1017

The next term in the given series is 1017

**19. 379, 468, 557, 646,__**

A. 778

B. 735

C. 745

D. 754

**Answer:** **B**

**Explanation:**

The series is divided into three series.

The first series is 3, 4, 5, 6

so the next term in the first series is 7

The second series is 7, 6, 5, 4

So the next term in the second series is 3

The third series is 9, 8, 7, 6

The next term in the third series is 5

According to the question, the next term is 735

**20. 6, 9, 15, 24, 39, 63, 102,__.**

A. 175

B. 165

C. 155

D. 145

**Answer:** **B**

**Explanation:**

The series in the form 6+9=15

15+9=24

24+15=39

39+24=63

63+39=102

102+63=165

The next term in the given series is 165

**Series-Missing term**

**21. What is the value of x+y in the grid below**

A. 5

B. 6

C. 8

D. 12

12 |
21 |
33 |

13 | Y | 17 |

X | 2 | 4 |

**Answer:** **B**

**Explanation:**

The first row we can conclude that 12+21=33

13+y=17 then y=4

x+2=4 then x=2

Then x+y=2+4=6

**22. What is the value of the 3A-2B?**

A. 0

B. 28

C. 14

D. 42

9 |
8 |
14 |

18 | 16 | A |

27 | Y | B |

X | 32 | 56 |

**Answer:** **A**

**Explanation:**

From the given table the first column determines 9, 9*2, 9*3,9*4

then x=36

From the given table the second column determines 8, 8*2, 8*3,8*4

then y=24

From the given table the third column determines 14, 14*2, 14*3, 14*4

then A=28 ,B=42

**23. Consider 4*4 grid with digits 1 to 4. so, each column, each row, and each of the 4 (2*2) subgrids that compose the main grid contains all the digits from 1 to 4. The same digit should not appear twice in the same row, columns or in any of the 4 grids. **

1 |
A |
B |
4 |

C | 3 | D | E |

F | G | 4 | H |

3 | I | J | 2 |

What is the sum of F and H?

A. 5

B. 7

C. 6

D. 4

**Answer:** **A**

**Explanation:**

By following the Sudoku method we can determine the values

According to the question F+H=2+3=5

What is the value of AB+DF?

A. 10

B. 8

C. 12

D. 16

**Answer:** **A**

**Explanation: **

According to the question AB+DF=2*3+2*2=10.