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Quantitative Aptitude: Number Series 36 (based on RRB PO prelims)

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Number Series asked RRB PO Prelim 9 September 2017

These questions are based on Number Series asked in RRB PO Prelims – Shift 1. Number Series asked IBPS RRB PO Prelim 9 September 2017.

Click here for Number Series asked on 10th September

  1. 5, 28, 47, 64, 77, ?
    A) 96
    B) 98
    C) 85
    D) 106
    E) 88
    View Answer
      Option E
    Pattern    :
    +23, +19, +17, +13, +11
  2. 6, 4, 5, 11, 39, ?
    A) 160
    B) 193
    C) 189
    D) 183
    E) 171
    View Answer
      Option C
    Pattern    :
    *1 – 2, *2 – 3, *3 – 4, *4 – 5, *5 – 6
  3. 29, 15, 16, 34, 105, ?
    A) 334
    B) 444
    C) 424
    D) 347
    E) 455
    View Answer
      Option C
    Pattern    :
    *0.5 + 0.5, *1 + 1, *2, +2, *3 + 3, *4 + 4
  4. 89, 88, 85, 78, 63, ?
    A) 32
    B) 30
    C) 34
    D) 27
    E) 23
    View Answer
      Option A
    Pattern    :
    -1, -3, -7, -15, -31
  5. 190, 94, 46, 22, ?, 4
    A) 16
    B) 10
    C) 9
    D) 13
    E) 8
    View Answer
      Option B
    Pattern    :
    190 – 2 = 188/2 = 94
    94 – 2 = 92, 92/2 = 46
    46 – 2 = 44, 44/2 = 22
    22 – 2 = 20, 20/2 = 10
  6. 19, 9, 8, 14, 39, ?
    A) 196
    B) 152
    C) 185
    D) 106
    E) 138
    View Answer
      Option B
    Pattern    :
    *0.5 – 0.5, *1 – 1, *2, – 2, *3 – 3, *4 – 4
  7. 7, 6, 10, 27, 104, ?
    A) 530
    B) 493
    C) 489
    D) 515
    E) 509
    View Answer
      Option D
    Pattern    :
    *1 – 1, *2 – 2, *3 – 3, *4 – 4, *5 – 5
  8. 4, 46, 86, 122, 156, ?
    A) 186
    B) 244
    C) 219
    D) 197
    E) 205
    View Answer
      Option A
    Pattern    :
    +42, +40, +36, +34, +30
  9. 102, 101, 98, 91, 76, ?
    A) 42
    B) 40
    C) 45
    D) 37
    E) 33
    View Answer
      Option C
    Pattern    :
    -1, -3, -7, -15, -31
  10. 728, 242, 80, 26, ?, 2
    A) 16
    B) 10
    C) 9
    D) 13
    E) 8
    View Answer
      Option E
    Pattern    :
    728 – 2 = 726, 726/3 = 242
    242 – 2 = 240, 240/3 = 80
    80 – 2 = 78, 78/3 = 26
    26 – 2 = 24, 24/3 = 8

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15 thoughts on “Quantitative Aptitude: Number Series 36 (based on RRB PO prelims)”

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