Number Series


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

  1. 15, 25, 40, 65, ?, 195











  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. View Hint View Answer Discuss in Forum

    x 2.5 + 20.

    Correct Option: E

    x 2.5 + 20.



  1. What should come next in thje following number series?
    9 7 5 3 1 1 8 6 4 2 2 9 7 5 3 1 8 6 4 2 2 9 7 5 3 1 8 6 4 9 7 5











  1. View Hint View Answer Discuss in Forum

    9 7 5 3 1 1/ 8 6 4 2 2/ 9 7 5 3 1/ 8 6 4 2 2 / 9 7 5 3 1/ 8 6 4 2/ 9 7 5 3/ 8 6 4 2

    Correct Option: C

    9 7 5 3 1 1/ 8 6 4 2 2/ 9 7 5 3 1/ 8 6 4 2 2 / 9 7 5 3 1/ 8 6 4 2/ 9 7 5 3/ 8 6 4 2


  1. 435, 354, 282, 219, 165 ?











  1. View Hint View Answer Discuss in Forum

    The given series is -
    (9 x 9), - (9 x 8), - (9 x 7), - (9 x 6), - (9 x 5)

    Correct Option: C

    The given series is -
    (9 x 9), - (9 x 8), - (9 x 7), - (9 x 6), - (9 x 5)



  1. 4, 200, 369, 513, 634 ?











  1. View Hint View Answer Discuss in Forum

    The given series is
    + (14)2, + (13)2, + (12)2, + (11)2, + (10)2

    Correct Option: C

    The given series is
    + (14)2, + (13)2, + (12)2, + (11)2, + (10)2