Number Series


  1. 11, 18, 29, 42, 59, 80, 101











  1. View Hint View Answer Discuss in Forum

    The series is + 7, + 11, + 13, + 17, + 19, + 23
    11 + 7 = 18, 18 + 11 = 29, 29 + 13 = 42, 42 + 17 = 59, 59 + 19 = 78, 78 + 23 = 101
    The wrong number is 34650; 17325 x 3 = 51975

    Correct Option: E

    The series is + 7, + 11, + 13, + 17, + 19, + 23
    11 + 7 = 18, 18 + 11 = 29, 29 + 13 = 42, 42 + 17 = 59, 59 + 19 = 78, 78 + 23 = 101
    The wrong number is 34650; 17325 x 3 = 51975


  1. 2, 9, 32, 105, 436, 2195, 13182











  1. View Hint View Answer Discuss in Forum

    The series is ( + 7 x 1), (+ 6 x 2), (+ 5 x 3), (+ 4 x 4), (+ 3 x 5), (+ 2 x 6).
    The wrong number is 32;
    (9 + 6) x 2 = 15 x 2 = 30

    Correct Option: D

    The series is ( + 7 x 1), (+ 6 x 2), (+ 5 x 3), (+ 4 x 4), (+ 3 x 5), (+ 2 x 6).
    The wrong number is 32;
    (9 + 6) x 2 = 15 x 2 = 30



  1. 5, 55, 495, 3465, 17325, 34650, 51975











  1. View Hint View Answer Discuss in Forum

    The series is x 11, x 7, x 5, x 3, x 1. The wrong no. is 34650; 17325 x 3 =51975

    Correct Option: B

    The series is x 11, x 7, x 5, x 3, x 1. The wrong no. is 34650; 17325 x 3 =51975


  1. 3, 7, 16, 32, 56, 93, 142











  1. View Hint View Answer Discuss in Forum

    The series is 22, + 32, + 42, + 52, + 62, + 72 .
    The wrong no. is 56; 32 + 52 = 32 + 25 = 57

    Correct Option: A

    The series is 22, + 32, + 42, + 52, + 62, + 72 .
    The wrong no. is 56; 32 + 52 = 32 + 25 = 57



  1. 4, 5, 12, 38, 160, 805, 4835











  1. View Hint View Answer Discuss in Forum

    The series is x 1 + 1, x 2 + 2, x 3 + 3, x 4 + 4, x 5 + 5, x 6 + 6.
    The wrong no. is 38; 12 x 3 + 3 = 36 + 3 = 39

    Correct Option: C

    The series is x 1 + 1, x 2 + 2, x 3 + 3, x 4 + 4, x 5 + 5, x 6 + 6.
    The wrong no. is 38; 12 x 3 + 3 = 36 + 3 = 39