Number Series


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

  1. 45, 46, 70, 141, ?, 1061.5
    1. 353
    2. 353.5
    3. 352.5
    4. 352
    5. None of these

  1. View Hint View Answer Discuss in Forum

    The series is x 1 + 1, x 1.5 + 1, x 2 + 1, x 2.5 + 1, x 3 + 1, ...

    Correct Option: B

    The series is x 1 + 1, x 1.5 + 1, x 2 + 1, x 2.5 + 1, x 3 + 1, ...


  1. 620, 632, 608, 644, 596 ?
    1. 536
    2. 556
    3. 656
    4. 646
    5. None of these

  1. View Hint View Answer Discuss in Forum

    The series is + 12, - 24, + 36, - 48, + 60, .........

    Correct Option: C

    The series is + 12, - 24, + 36, - 48, + 60, .........



  1. 15, 25, 40, 65, ?, 195
    1. 115
    2. 90
    3. 105
    4. 120
    5. None of these

  1. View Hint View Answer Discuss in Forum

    The series is x 2 - 5, x 2- 10, x - 15, x 2 - 20, x 2 - 25, .........

    Correct Option: E

    The series is x 2 - 5, x 2- 10, x - 15, x 2 - 20, x 2 - 25, .........


  1. 120, 320, ?, 2070, 5195, 13007.5
    1. 800
    2. 920
    3. 850
    4. 900
    5. None of these

  1. View Hint View Answer Discuss in Forum

    x 2.5 + 20.

    Correct Option: E

    x 2.5 + 20.



  1. 27, 38, 71, 126, 203?
    1. 212
    2. 202
    3. 301
    4. 312
    5. None of these

  1. View Hint View Answer Discuss in Forum

    The given series is + (11 x 1), + (11 x 3), + (11 x 5), + (11 x 7), + (11 x 9). So next no. is 302

    Correct Option: E

    The given series is + (11 x 1), + (11 x 3), + (11 x 5), + (11 x 7), + (11 x 9). So next no. is 302