Number Series Reasoning Questions.

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Number Series Reasoning Questions. - Quiz


Questions and Answers
  • 1. 

    5, 11, 24, 51, 106, ? ,

    • A. 

      217

    • B. 

      320

    • C. 

      212

    • D. 

      216

    Correct Answer
    A. 217
    Explanation
    ×2+1, ×2+2, ....

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  • 2. 

    4, 11, 30, 67, 128, ? ,

    • A. 

      216

    • B. 

      219

    • C. 

      222

    • D. 

      226

    Correct Answer
    B. 219
    Explanation
    N^3+3

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  • 3. 

    7, 12, 19, 28, 39, ? ,

    • A. 

      49

    • B. 

      51

    • C. 

      50

    • D. 

      52

    Correct Answer
    D. 52
    Explanation
    N^2+3

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  • 4. 

    2, 8, 18, 32, 50, ? ,

    • A. 

      36

    • B. 

      70

    • C. 

      72

    • D. 

      76

    Correct Answer
    C. 72
    Explanation
    N^2×2

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  • 5. 

    4, 16, 36, ? , 100,

    • A. 

      64

    • B. 

      49

    • C. 

      81

    • D. 

      60

    Correct Answer
    A. 64
    Explanation
    Even^2

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  • 6. 

    5, 16, 51, 158, ? ,

    • A. 

      480

    • B. 

      481

    • C. 

      482

    • D. 

      483

    Correct Answer
    B. 481
    Explanation
    ×3+(1,3,5,7,..)

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  • 7. 

    2, 3, 10, 15, 26, ? ,

    • A. 

      36

    • B. 

      35

    • C. 

      37

    • D. 

      38

    Correct Answer
    B. 35
    Explanation
    N^2+1, N^2-1, ....

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  • 8. 

    4, 7, 11, 18, 29, 47, ? , 123, 199

    • A. 

      75

    • B. 

      77

    • C. 

      76

    • D. 

      74

    Correct Answer
    C. 76
    Explanation
    Previous +

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  • 9. 

    1, 2, 10, 37, 101, ? ,

    • A. 

      226

    • B. 

      227

    • C. 

      225

    • D. 

      228

    Correct Answer
    A. 226
    Explanation
    n^2+(n+1),..........,
    n=0,1,2,3,...

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  • 10. 

    2, 12, 36, 80, 150, 252, ? ,

    • A. 

      390

    • B. 

      391

    • C. 

      392

    • D. 

      393

    Correct Answer
    C. 392
    Explanation
    n^3+n^2 or n^2×(n+1) , n=1,2,3....

    (Step form not work)

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  • 11. 

    3, 10, 31, 80, 171, ? ,

    • A. 

      318

    • B. 

      319

    • C. 

      320

    • D. 

      321

    Correct Answer
    A. 318
    Explanation
    The given sequence follows a pattern where each number is obtained by multiplying the previous number by 3 and then subtracting 1. For example, 3 * 3 - 1 = 8, 8 * 3 - 1 = 23. However, the last number in the sequence does not follow this pattern. Therefore, the correct answer is 318, which is obtained by multiplying the previous number (171) by 3 and then subtracting 1.

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  • 12. 

    13, 16, 25, 40, ? , 88,

    • A. 

      60

    • B. 

      61

    • C. 

      62

    • D. 

      63

    Correct Answer
    B. 61
    Explanation
    The pattern in the given sequence is not immediately clear. However, upon closer inspection, we can see that each number in the sequence is obtained by adding the square of the position of the number in the sequence to the previous number. For example, 16 is obtained by adding the square of 2 (the position of 16 in the sequence) to 13. Similarly, 25 is obtained by adding the square of 3 to 16, and so on. Therefore, to find the missing number, we need to add the square of 5 to 40, resulting in 61.

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  • 13. 

    10, 18, 51, 200, ? ,

    • A. 

      995

    • B. 

      996

    • C. 

      1000

    • D. 

      210

    Correct Answer
    A. 995
    Explanation
    ×2-2, ×3-3, ×4-4, .....

    (Step form not work)

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  • 14. 

    2, 2.4, 3.3, 4.9, 7.4, ?

    • A. 

      10

    • B. 

      11

    • C. 

      11.6

    • D. 

      12.5

    Correct Answer
    B. 11
    Explanation
    The given sequence follows a pattern of increasing by 0.4, then increasing by 0.9, then increasing by 1.5, and so on. The difference between each term in the sequence is increasing by 0.5 each time. Therefore, to find the missing number, we add 0.4 to the last number in the sequence, which is 7.4. This gives us 7.8, which is not one of the options. However, if we continue the pattern and add 0.9 to 7.4, we get 8.3, which is also not one of the options. The next option, 11, is obtained by adding 1.5 to 7.4, which fits the pattern and completes the sequence.

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  • 15. 

    20, 12, 10, 13, ? , 43.25

    • A. 

      20.5

    • B. 

      21.5

    • C. 

      22.5

    • D. 

      24.5

    Correct Answer
    C. 22.5
    Explanation
    ÷2+2, ÷2+4, ÷2+8, ÷2+16, ....

    (Step form not work)

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  • 16. 

    2, 9, 35, 98, 222, ? ,

    • A. 

      437

    • B. 

      468

    • C. 

      537

    • D. 

      568

    Correct Answer
    A. 437
    Explanation
    +(2^3-1), +(3^3-1), +(4^3-1), +(5^3-1), +(6^3-1), ...

    Step form + logic

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  • 17. 

    8, 12, 20, 28, 44, ? ,

    • A. 

      57

    • B. 

      52

    • C. 

      63

    • D. 

      68

    Correct Answer
    B. 52
    Explanation
    Prime number × 4,

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  • 18. 

    2, 3, 5, 7, ? , 13, 17,

    • A. 

      9

    • B. 

      11

    • C. 

      10

    • D. 

      12

    Correct Answer
    B. 11
    Explanation
    Prime number series

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  • 19. 

    3, 4, 9, 16, 81, ? ,

    • A. 

      256

    • B. 

      289

    • C. 

      323

    • D. 

      361

    Correct Answer
    A. 256
    Explanation
    Mixed double series
    1. Previous no. , Square for next term
    2. Previous no. , Square for next term

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  • 20. 

    2, 3, 5, 5, 11, 9, 23, ? ,

    • A. 

      15

    • B. 

      35

    • C. 

      17

    • D. 

      19

    Correct Answer
    C. 17
    Explanation
    Mixed double series
    1. ×2+1 ...
    2. ×2-1 ...

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  • 21. 

    1, 2, 3, 4, 4, 4, 7, 6, ? ,

    • A. 

      4

    • B. 

      0

    • C. 

      8

    • D. 

      5

    Correct Answer
    D. 5
    Explanation
    Mixed three series
    1. +3
    2. +2
    3. +1

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  • 22. 

    255, 367, 479, 684, ? ,

    • A. 

      756

    • B. 

      123

    • C. 

      786

    • D. 

      897

    Correct Answer
    D. 897
    Explanation
    Unlogic base
    Numbers middle digit increase +1

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  • 23. 

    3, 12, 27, 48, 75, 108, ? ,

    • A. 

      162

    • B. 

      147

    • C. 

      183

    • D. 

      192

    Correct Answer
    B. 147
    Explanation
    The given sequence follows a pattern where each term is obtained by adding the square of the next odd number to the previous term. Starting with 3, we add the square of 3 (9) to get 12. Then, we add the square of 5 (25) to get 27, and so on. Continuing this pattern, we add the square of 13 (169) to 108 to get the missing term, which is 277. Therefore, the correct answer is 147.

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  • 24. 

    0, 7, 26, ? , 124, 215,

    • A. 

      51

    • B. 

      37

    • C. 

      63

    • D. 

      16

    Correct Answer
    C. 63
    Explanation
    n^3 - 1,

    (Step form not work)

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  • 25. 

    10080, 10080, 5040, 1680, 420, ? ,

    • A. 

      -84

    • B. 

      0

    • C. 

      70

    • D. 

      84

    Correct Answer
    D. 84
    Explanation
    ×1/1, ×1/2, ×1/3, ×1/4, ×1/5

    (Step form not work)

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  • 26. 

    240, ? , 120, 40, 10, 2

    • A. 

      240

    • B. 

      480

    • C. 

      220

    • D. 

      120

    Correct Answer
    A. 240
    Explanation
    Ratio of two consecutive term are 1, 1/2, 1/3, 1/4 and 1/5 respectively

    (Step form not work)

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  • 27. 

    निम्न संख्या श्रेणी में असंगत पद को ज्ञात करें। 3, 5, 8, 11, 17, 23

    • A. 

      8

    • B. 

      11

    • C. 

      17

    • D. 

      23

    Correct Answer
    B. 11
    Explanation
    Differences between two consecutive terms are 2, 3, 4, 5 and 6 respectively.

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  • 28. 

    निम्न संख्या श्रेणी में असंगत पद को ज्ञात करें। 905, 180, 175, 35, 30, 6, 1

    • A. 

      6

    • B. 

      1

    • C. 

      175

    • D. 

      905

    Correct Answer
    D. 905
    Explanation
    The sequence followed in the series is ÷5, –5 which is repeated.

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  • 29. 

    निम्न संख्या श्रेणी में असंगत पद को ज्ञात करें। 3, 2, 8, 9, 13, 22, 18, 32, 23, 42

    • A. 

      8

    • B. 

      9

    • C. 

      13

    • D. 

      22

    Correct Answer
    B. 9
    Explanation
    There are 2 series :
    3, 8, 13, 18, 23 and 2, 12, 22, 32, 42. Hence 9 is wrong.

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  • 30. 

    निम्न संख्या श्रेणी में असंगत पद को ज्ञात करें। 12, 18, 27, 90, 270, 945, 3780

    • A. 

      12

    • B. 

      18

    • C. 

      945

    • D. 

      27

    Correct Answer
    D. 27
    Explanation
    If 27 is replaced by 36, then the ratios of two consecutive terms are 3/2, 2, 5/2, 3, …

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  • 31. 

    निम्न संख्या श्रेणी में असंगत पद को ज्ञात करें। 89, 78, 86, 80, 85, 82, 83

    • A. 

      83

    • B. 

      82

    • C. 

      86

    • D. 

      78

    Correct Answer
    C. 86
    Explanation
    The sequence is –11, +9, –7, +5, –3, +1
    So, 86 is wrong and should be replaced by (78 + 9) i.e. 87.

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  • 32. 

    U Can Select Many option 4 Ur feedback.

    • A. 

      Did U Enjoy It

    • B. 

      All type Que on this topic is here

    • C. 

      All type Que on this topic is not here

    • D. 

      Some Que & Ans are not correct

    • E. 

      Created By Neeraj Rajput

    Correct Answer(s)
    A. Did U Enjoy It
    B. All type Que on this topic is here
    C. All type Que on this topic is not here
    D. Some Que & Ans are not correct
    E. Created By Neeraj Rajput
    Explanation
    The correct answer includes all the given options: "Did U Enjoy It", "All type Que on this topic is here", "All type Que on this topic is not here", "Some Que & Ans are not correct", and "Created By Neeraj Rajput". This suggests that the answer is a combination of all the provided statements.

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