Quantitative Aptitude: Number Series Set 125

Directions (1-5): Find the wrong term in the series:-

  1. 1.5.., 9.., 24.., 96.., 384.., 1536.
    1.5
    9
    24
    96
    384
    Option B
    1.5 * 4 = 6
    6 * 4 = 24
    24 * 4 = 96
    96 * 4 = 384

     

  2. 18.., 20.., 19.., 22.., 22.., 24.., 27
    18
    20
    19
    22
    24
    Option E
    add 1, 2…… to the alternative terms.
    The wrong term is, 24

     

  3. 11.., 12.., 25.., 76.., 304.., 1526
    11
    12
    25
    76
    304
    Option E
    11 * 1 + 1 = 12
    12 * 2 + 1 = 25
    25 * 3 + 1 = 76
    76 * 4 + 1 = 305
    305 * 5 + 1 = 1526
    1526 * 6 + 1 = 9157
    The wrong term is, 304

     

  4. 90.., 86.., 95.., 79.., 103.., 68.., 117
    90
    86
    103
    68
    95
    Option C
    90, 86, 95, 79, 104, 68, 117
    -4 +9 -16 -25 +36 -49
    The difference is, – 22, + 32, – 42, – 52, – 62, – 72,…..
    The wrong term is, 103

     

  5. 4.., 12.., 60.., 360.., 2520.., 20160
    4
    12
    60
    360
    2520
    Option A
    3 * 4 = 12
    12 * 5 = 60
    60 * 6 = 360
    360 * 7 = 2520
    2520 * 8 = 10160
    The wrong term is, 4

     

  6. Directions (6-10): Find the number in place of ? in the following series

  7. 1.., 16.., 81…, 256…, 625…, 1296.., ..?
    2401
    2210
    2230
    2300
    2450
    Option A
    The pattern of the series is 1^4, 2^4, 3^4, 4^4, 5^4……..

     

  8. 14.., 17.., 15.., 18.., 16.., 19.., ?
    17
    18
    19
    21
    22
    Option A
    The pattern of the series is +3,-2, +3, -2………..

     

  9. 7380.., 4428.., 2656.8.., 1594.08.., 956.448.., 573.87.., ?
    344.322
    233.55
    211.77
    322
    333.33
    Option A
    The pattern of the series is *3/5, *3/5, *3/5……………

     

  10. 7.., 13.., 24.., 40.., 61.., ?
    78
    87
    88
    81
    80
    Option B
    The difference of difference is 5.

     

  11. 1.6.., 16.., 192.., 2688.., ?.., 774144..
    43008
    44550
    42009
    32008
    46008
    Option A
    The pattern of the series is *10, *12, *14, *16……………

     

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