Quantitative Aptitude: Number Series Set 127

Find the wrong term:-

  1. 289.., 292.., 297.., 306.., 322
    289
    292
    297
    306
    322
    Option E
    289 + (21 + 1) = 292
    292 + (22 + 1) = 297
    297 + (23 + 1) = 306
    306 + (24 + 1) = 323

     

  2. 21.., 10.., 11.., 16.5.., 33..,
    21
    10
    11
    16.5
    32
    Option E
    21 * 0.5 – 0.5 = 10
    10 * 1 + 1 = 11
    11 * 1.5 – 1.5 = 16.5
    16.5 * 2 + 2 = 32

     

  3. 225.., 223…, 111…, 36…, 8
    225
    223
    111
    36
    8
    Option B
    (225 – 1) / 1 = 224,
    (224 – 2) / 2 = 111,
    (111 – 3) / 3 = 36,
    (36 – 4) / 4 = 8

     

  4. 1…, 2…, 8…, 32…, 148…,
    1
    2
    8
    32
    148
    Option D
    1 * 1 + 12 = 2
    2 * 2 + 22 = 8
    8 * 3 + 32 = 33
    33 * 4 + 42 = 148

     


  5. 27…, 55…, 114…, 227…, 458
    27
    55
    114
    227
    458
    Option C
    27 * 2 + 1 = 55
    55 * 2 + 2 = 112
    112 * 2 + 3 = 227
    227 * 2 + 4 = 458

     

  6. Find the missing numbers:-

  7. 1024.., 64.., 512.., 128.., 256.., ?
    234
    256
    276
    244
    250
    Option B
    1024 ÷ 16 = 64
    64 * 8 = 512
    512 ÷ 4 = 128
    128 * 2 = 256
    256 ÷ 1 = 256

     

  8. 578.., 589.., 611…, 655.., ?.., 919
    657
    743
    890
    790
    888
    Option B
    578.., 589.., 611…, 655.., 743.., 919
    11 22 44 88 176
    11 22 44 88

     

  9. 13…, 156…, 297.., 436.., 573.., 708.., ?
    870
    841
    887
    860
    790
    Option B
    13 + 143 = 156
    156 + 141 = 297
    297 + 139 = 436
    436 + 137 = 573
    573 + 135 = 708
    708 + 133 = 841

     

  10. 9360.., 9360.., 4680.., 1560.., 390.., 78.., ?
    12
    13
    14
    15
    16
    Option B
    9360 / 1 = 9360
    9360 / 2 = 4680
    4680 / 3 = 1560
    1560 / 4 = 390
    390 / 5 = 78
    78 / 6 = 13

     

  11. 23…, 34.5…, 69…, 172.5…, 517.5…, 1811.25…, ?
    3456
    7245
    3467
    7690
    1128
    Option B
    23 * 1.5 = 34.5
    34.5 * 2 = 69
    69 * 2.5 = 172.5
    172.5 * 3 = 517.5
    517.5 * 3.5 = 1811.25
    1811.25 * 4 = 7245

     

Related posts

Leave a Comment