## Logical Reasoning Questions

**Q1. 11 16 21 26 31 36 41**

A. 47 52

B. 46 52

C. 45 49

D. 46 51

**Answer:: Option D**

**Explanation:**:

In this simple addition series, each number is 5 more than the previous number.

**Q2. 3 8 13 18 23 28 33**

A. 39 44

B. 38 44

C. 38 43

D. 37 42

E. 33 38

**Answer:: Option C**

**Explanation:**:

In this simple addition series, each number is 5 greater than the previous number.

**Q3. 84 78 72 66 60 54 48**

A. 44 34

B. 42 36

C. 42 32

D. 40 34

E. 38 32

**Answer:: Option B**

**Explanation:**:

In this simple subtraction series, each number is 6 less than the previous number.

**Q4. 20 20 17 17 14 14 11**

A. 8 8

B. 11 11

C. 11 14

D. 8 9

E. 11 8

**Answer:: Option E**

**Explanation:**:

This is a simple subtraction with repetition series. It begins with 20, which is repeated, then 3 is subtracted, resulting in 17, which is repeated, and so on.

**Q5. 61 57 50 61 43 36 61**

A. 29 61

B. 27 20

C. 31 61

D. 22 15

E. 29 22

**Answer:: Option E**

**Explanation:**:

This is an alternating repetition series, in which a random number, 61, is interpolated as every third number into an otherwise simple subtraction series. Starting with the second number, 57, each number (except 61) is 7 less than the previous number

**Q6. 9 12 11 14 13 16 15**

A. 14 13

B. 18 21

C. 14 17

D. 12 13

E. 18 17

**Answer:: Option E**

**Explanation:**:

This is a simple alternating addition and subtraction series. First, 3 is added, then 1 is subtracted, then 3 is added, 1 subtracted, and so on.

**Q7. 4 8 22 12 16 22 20 24**

A. 28 32

B. 28 22

C. 22 28

D. 32 36

E. 22 26

**Answer:: Option C**

**Explanation:**:

This is an alternating repetition series, with a random number, 22, interpolated as every third number into an otherwise simple addition series. In the addition series, 4 is added to each number to arrive at the next number.

**Q8. 40 40 31 31 22 22 13**

A. 13 4

B. 13 5

C. 4 13

D. 9 4

E. 4 4

**Answer:: Option A**

**Explanation:**:

This is a subtraction series with repetition. Each number repeats itself and then decreases by 9.

**Q9. 1 10 7 20 13 30 19**

A. 26 40

B. 29 36

C. 40 25

D. 25 31

E. 40 50

**Answer:: Option C**

**Explanation:**:

Here, every other number follows a different pattern. In the first series, 6 is added to each number to arrive at the next. In the second series, 10 is added to each number to arrive at the next.

**Q10. 10 20 25 35 40 50 55**

A. 70 65

B. 60 70

C. 60 75

D. 60 65

E. 65 70

**Answer:: Option E**

**Explanation:**:

This is an alternating addition series, in which 10 is added, then 5, then 10, and so on.

**Q11. 28 25 5 21 18 5 14**

A. 11 5

B. 10 7

C. 11 8

D. 5 10

E. 10 5

**Answer:: Option A**

**Explanation:**:

This is an alternating subtraction series with the interpolation of a random number, 5, as every third number. In the subtraction series, 3 is subtracted, then 4, then 3, and so on.

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Q12. 8 11 21 15 18 21 22

A. 25 18

B. 25 21

C. 25 29

D. 24 21

E. 22 26

**Answer:: Option B**

**Explanation:**:

This is an alternating addition series, with a random number, 21, interpolated as every third number. The addition series alternates between adding 3 and adding 4. The number 21 appears after each number arrived at by adding 3.

**Q13. 9 16 23 30 37 44 51**

A. 59 66

B. 56 62

C. 58 66

D. 58 65

E. 54 61

**Answer:: Option D**

**Explanation:**:

Here is a simple addition series, which begins with 9 and adds 7.

**Q14. 2 8 14 20 26 32 38**

A. 2 46

B. 44 50

C. 42 48

D. 40 42

E. 32 26

**Answer:: Option B**

**Explanation:**:

This is a simple addition series, which begins with 2 and adds 6.

**Q15. 9 11 33 13 15 33 17**

A. 19 33

B. 33 35

C. 33 19

D. 15 33

E. 19 21

**Answer:: Option A**

**Explanation:**:

In this alternating repetition series, a random number, 33, is interpolated every third number into a simple addition series, in which each number increases by 2.

**Q16. 2 3 4 5 6 4 8**

A. 9 10

B. 4 8

C. 10 4

D. 9 4

E. 8 9

**Answer:: Option D**

**Explanation:**:

This is an alternating addition series with a random number, 4, interpolated as every third number. In the main series, 1 is added, then 2 is added, then 1, then 2, and so on.

**Q17. 17 17 34 20 20 31 23**

A. 26 23

B. 34 20

C. 23 33

D. 27 28

E. 23 28

**Answer:: Option E**

**Explanation:**:

This is an alternating subtraction series with repetition. There are two different patterns here. In the first, a number repeats itself; then 3 is added to that number to arrive at the next number, which also repeats. This gives the series 17, 17, 20, 20, 23, and so on. Every third number follows a second pattern, in which 3 is subtracted from each number to arrive at the next: 34, 31, 28.

**Q18. 6 20 8 14 10 8 12**

A. 14 10

B. 2 18

C. 4 12

D. 2 14

E. 14 14

**Answer:: Option D**

**Explanation:**:

This is an alternating addition and subtraction series. In the first pattern, 2 is added to each number to arrive at the next; in the alternate pattern, 6 is subtracted from each number to arrive at the next.

**Q19. 21 25 18 29 33 18**

A. 43 18

B. 41 44

C. 37 18

D. 37 41

E. 38 41

**Answer:: Option D**

**Explanation:**:

This is a simple addition series with a random number, 18, interpolated as every third number. In the series, 4 is added to each number except 18, to arrive at the next number.

**Q20. 75 65 85 55 45 85 35**

A. 25 15

B. 25 85

C. 35 25

D. 85 35

E. 25 75

**Answer:: Option B**

**Explanation:**:

This is a simple subtraction series in which a random number, 85, is interpolated as every third number. In the subtraction series, 10 is subtracted from each number to arrive at the next.