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Series Completion Questions Answers

  • 8. 1,9,17,33,49,73, ?

    1. 93
    2. 95
    3. 97
    4. 99
    Answer And Explanation

    Answer: Option C

    Explanation:

    Pattern for the given series is, +8, +8, +16, +16, +24

    So next will be +24, 73+24 = 97

  • 9. 2,5,9,?,20,27, what will replace the question mark ?

    1. 13
    2. 14
    3. 15
    4. 16
    Answer And Explanation

    Answer: Option B

    Explanation:

    Pattern is +3,+4,..,..,+7, so +5 and +6 will be in the blanks

    Question mark will be replaced by 9+5 = 14

  • 10. 21,25,33,49,81, ?

    1. 140
    2. 145
    3. 147
    4. 159
    Answer And Explanation

    Answer: Option B

    Explanation:

    Pattern is, +4, +8, +16, +32, so next will be +64
    81+64 = 145

  • 11. 5,9,17,29,45, ?

    1. 50
    2. 60
    3. 65
    4. 70
    Answer And Explanation

    Answer: Option C

    Explanation:

    In this series the pattern is +4, +8, +12, +16, so next will be +20

    Term which will replace the question mark in this series will be 45+20 = 65

  • 12. 1,6,15,(...),45,66,91

    1. 26
    2. 28
    3. 29
    4. 34
    Answer And Explanation

    Answer: Option B

    Explanation:

    Pattern in the series is, +5, +9, .., .., +21, +25
    So 4 is getting increased at every term addition.
    Missing term in the series will be 15+(9+4)
    = 15+13 = 28

  • 13. Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?

    1. 25
    2. 26
    3. 27
    4. 28
    Answer And Explanation

    Answer: Option A

    Explanation:

    Please look carefully at the series, its pattern is,
    -1, +2, -1, +2, -1, so next will be +2
    23+2 = 25

  • 14. What number should come next in the series, 1, 2, 3, 5, 8, ?

    1. 17
    2. 12
    3. 9
    4. 13
    Answer And Explanation

    Answer: Option D

    Explanation:

    In this series, each term is the sum of preceding two terms as,
    1+2 = 3
    3+2 = 5
    5+3 = 8
    Next term in the series will be,
    8+5 = 13