Number Series


  1. 12, 18, 36, 102, 360 ?
    1. 1364
    2. 1386
    3. 1384
    4. 1376
    5. None of these

  1. View Hint View Answer Discuss in Forum

    The pattern of the number series is given as follows:
    12 x 4 - 30 = 48 - 30 = 18
    18 x 4 - 36 = 72 - 36 = 36
    36 x 4 - 42 = 144 - 42 = 102
    102 x 4 - 48 = 408 - 48 = 360
    360 x 4 - 54 = 1440 - 54 = 1386

    Correct Option: B

    The pattern of the number series is given as follows:
    12 x 4 - 30 = 48 - 30 = 18
    18 x 4 - 36 = 72 - 36 = 36
    36 x 4 - 42 = 144 - 42 = 102
    102 x 4 - 48 = 408 - 48 = 360
    360 x 4 - 54 = 1440 - 54 = 1386


Direction: In each of these questions, a number series is given. In each series, only one number is wrong. Find out the wrong number.

  1. 7, 12, 40, 222, 1742, 17390, 208608
    1. 7
    2. 12
    3. 40
    4. 1742
    5. 208608

  1. View Hint View Answer Discuss in Forum

    The pattern of number series is as follows :
    7 x 2 - 2 = 12
    12 x 4 - (2 + 6) = 48 - 8 = 40
    40 x 6 - (8 + 10) = 240 - 18 = 222
    222 x 8 - (18 + 14) = 1776 - 32 = 1744 ≠ 1742
    1744 x 10 - (32 + 18) = 17440-50=17390

    Correct Option: D

    The pattern of number series is as follows :
    7 x 2 - 2 = 12
    12 x 4 - (2 + 6) = 48 - 8 = 40
    40 x 6 - (8 + 10) = 240 - 18 = 222
    222 x 8 - (18 + 14) = 1776 - 32 = 1744 ≠ 1742
    1744 x 10 - (32 + 18) = 17440-50=17390



  1. 6, 91, 584, 2935, 11756, 35277, 70558
    1. 91
    2. 70558
    3. 584
    4. 2935
    5. 35277

  1. View Hint View Answer Discuss in Forum

    The pattern of series is as follows :
    6 x 7 + 72 = 42 + 49 = 91
    91 x 6 + 62 = 546 + 36 = 582 ≠ 584
    582 x 5 + 52 = 2910 + 25 = 2935
    2935 x 4 + 4,sup>2 = 11740 + 16 = 11756
    11756 x 3 + 32 =35268 + 9 = 35277

    Correct Option: C

    The pattern of series is as follows :
    6 x 7 + 72 = 42 + 49 = 91
    91 x 6 + 62 = 546 + 36 = 582 ≠ 584
    582 x 5 + 52 = 2910 + 25 = 2935
    2935 x 4 + 4,sup>2 = 11740 + 16 = 11756
    11756 x 3 + 32 =35268 + 9 = 35277


  1. 9050, 5675, 3478, 2147, 1418, 1077, 950
    1. 3478
    2. 1418
    3. 5675
    4. 2147
    5. 1077

  1. View Hint View Answer Discuss in Forum

    The pattern of number series is follows:
    9050 - 153 = 9050 - 3375 = 5675
    5675 - 133 = 5675 - 2197 = 3478
    3478 - 113 = 3478 - 1331 = 2147
    2147 - 93 = 2147 - 729 = 1418
    1418 - 73 = 1418 - 343 = 1075 ≠1077

    Correct Option: E

    The pattern of number series is follows:
    9050 - 153 = 9050 - 3375 = 5675
    5675 - 133 = 5675 - 2197 = 3478
    3478 - 113 = 3478 - 1331 = 2147
    2147 - 93 = 2147 - 729 = 1418
    1418 - 73 = 1418 - 343 = 1075 ≠1077



Direction: What should come in place of the question mark (?) in the following questions?

  1. 325, 314, 288, 247, 191?
    1. 126
    2. 116
    3. 130
    4. 120
    5. None of these

  1. View Hint View Answer Discuss in Forum

    120

    Correct Option: D

    120