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Aptitude Questions: Number Series Set 45

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Hello Aspirants. Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series, which is common for all the competitive exams. We have included Some questions that are repeatedly asked in bank exams !!!

Directions(1-10) : In these questions, a number series is given. Find out the missing number.

  1. 13, 7, 6, 14, 52, ?
    A. 482
    B. 476
    C. 466
    D. 424
    E. 460
    Answer – D. 424
    Explanation :
    13 * 0.5 + 0.5 = 7
    7 * 1 – 1 = 6
    6 * 2 + 2 = 14

  2. 139, 142, 133, 160, 79,?
    A. 326
    B. 322
    C. 331
    D. 340
    E. 355
    Answer – B. 322
    Explanation :
    139 + 3 = 142
    142 – 9 = 133
    133 + 27 = 160….

  3. 10, 16, 27, 48, 84, ?
    A. 138
    B. 153
    C. 166
    D. 140
    E. 135
    Answer – D. 140
    Explanation :
    16 – 10 = 6
    27 – 16 = 11
    48 – 27 = 21; 11 – 6 = 5, 21 – 11 = 10….

  4. 66, 77, 63, 73, 60, ?
    A. 66
    B. 69
    C. 61
    D. 64
    E. 63
    Answer – B. 69
    Explanation :
    66 – 63 = 3
    77 – 73 = 4
    63 – 60 = 3….

  5. 16, 9, 8, 13, 25, ?
    A. 64.5
    B. 59.5
    C. 63.5
    D. 68.5
    E. 61.5
    Answer – C. 63.5
    Explanation :
    16 * 0.5 + 1 = 9
    9 * 1 – 1 = 8
    8 * 1.5 + 1 = 13

  6. 11, 12, 22, 69, 272 ?
    A. 1365
    B. 1368
    C. 1324
    D. 1325
    E. 1329
    Answer – A. 1365
    Explanation :
    11 * 1 + 1 = 12
    12 * 2 – 2 = 22
    22 * 3 + 3 = 69

  7. 11, 13, 16, 33, 96, ?
    A. 358
    B. 354
    C. 386
    D. 366
    E. 353
    Answer – E. 353
    Explanation :
    11 + 1² + 1= 13
    13 + 2² – 1= 16
    16 + 4² + 1= 33……..

  8. 4, 21, 120, 595, 2376 ? 
    A. 7125
    B. 7035
    C. 7085
    D. 7055
    E. 7115
    Answer – A. 7125
    Explanation :
    4*7 -7 = 21
    21*6 -6 = 120
    120*5 -5 = 595.

  9. 64, 66, 75, 103, 168, ?
    A. 282
    B. 294
    C. 286
    D. 295
    E. 288
    Answer – B. 294
    Explanation :
    64 + (1³ + 1) = 66
    66 + (2³ + 1) = 75
    75 + (3³ + 1) = 103

  10. 13, 25, 39, 57, 83, ?
    A. 122
    B. 124
    C. 126
    D. 120
    E. 125
    Answer – E. 125
    Explanation :
    13*2 – 1 = 25
    25*2 – 11 = 39
    39*2 – 21 = 57